NEET Biology Ch Digestion and Absorption [Free PDF ]

NEET Biology Ch Digestion and Absorption

1. The richest sources of vitamin-B12 are
   a) Goat’s liver and 𝑠𝑝𝑖𝑟𝑢𝑙𝑖𝑛𝑎 b) Chocolate and green gram
   c) Rice and hen’s egg d) Carrot and chicken’s breast
2. The contraction of gall bladder is due to
   a) Gastrin b) Cholecystokinin c) Secretin d) Kinase
3. In infant, the process of defecation occurs by
   a) Reflex action without voluntary control
   b) Reflex action with voluntary control
   c) Voluntary relaxation of external an sphincter
   d) Involuntary relaxation of internal and sphincter
4. Deficiency of tocopherol in the human body causes which condition?
   a) Beri-beri b) Pellagra c) Infertikity d) Scurvy
5. Brunner’s glands are located in
   a) Oesophagus b) Intestine c) Stomach d) Duodenum
6. Which is the correct chronological order for food processing in human beings?
   a) Ingestion of food → Digestion → Absorption → Assimilation → Egestion (Undigested)
   b) Ingestion → Assimilation → Digestion → Absorption → Egestion
   c) Ingestion → Digestion → Absorption → Egestion → Assimilation
   d) Digestion → Ingestion → Assimilation → Absorption → Egestion
7. Riboflavin is
   a) Vitamin-B12 b) Vitamin-B2 c) Vitamin-C d) Vitamin-D
8. The stored food in animals is called
   a) Cellulose b) Starch c) Glucose d) Glycogen
9. Consider the following statements.
   I. The anti-pellagra vitamin is nicotinamide present in milk, yeast, meat and leafy
   vegetables.
   II. Crypts of Leiberkuhn are present in the liver.
   III. Steapsin is the pancreatic amylase.
   a) I and II correct b) II and III correct c) I and III incorrect d) II and III incorrect
10. Which of the following vitamins is water soluble as well as an antioxidant?
    a) Vitamin-B1 b) Vitamin-A c) Vitamin-D d) Vitamin-C
11. Hydrochloic acid (HCl) is secreted by which of the following cells of stomach?
    a) Chief cells b) Parietal cells (oxyntic cells)
    c) Peptic cells d) Goblet cells
12. What are the narrow extensions of the pulp cavity?
    a) Pulp b) Dentine c) Root canals d) Periodontal ligament
13. Read thoroughly the following statements concerning with the assimilation of food. Identify true and false
    statements and choose the correct option from the given codes
    I. Conversion of amino acid into glucose and then into fat is irreversible reaction
    II. During the conversion of amino acids into glucose, amino group of amino acids is removed
    III. Excess of amino acids are converted into glucose and fats and thus are stored
    IV. Excess of simple sugars are stored in the liver and muscle cells. The process is known as glycogenolysis

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V. Process of gluconeogenesis occurs in the kidney and striped muscles
a) I, II, IV and V true while III is false b) I, II, III and V are true while IV is false
c) I, II, III and IV are false while V is true d) I, II and III are false while IV and V are true

14. Why the eyes of the patients turns yellow during jaundice?
    a) Due to the deposition of bile pigments b) Due to the ejection of stomach content through
    mouth
    c) Due to the stomach malfunctioning d) Due to the excessive vomiting
15. Which one of the following is a fat-soluble vitamin and its related deficiency disease?
    a) Ascorbic acid – Scurvy b) Retional – Xerophthalmia
    c) Cobalamin – Beri-beri d) Calciferol – Pellagra
16. Secretin and cholecystokinin are secreted by
    a) Brunner’s gland found in duodenum
    b) Paneth cells present in duodenum
    c) Goblet cells present through out the epithelium of the stomach
    d) Oxyntic cells present on the side walls of the gastric glands
17. Deficiency of Vitamin-B12causes
    a) Cheilosis b) Thalassemia c) Beri-beri d) Pernicious anaemia
18. In human beings, digestion of carbohydrates starts from the mouth. How much percentage of it is digested
    in the mouth?
    a) 10-20% b) 25-30% c) 60%-75% d) About 85%
19. Which one is a fat soluble vitamin?
    a) Vitamin-H b) Vitamin-C c) Vitamin-B d) Vitamin-D
20. Bacteria 𝐸,𝑐𝑜𝑙𝑖 are found in which part of the alimentary canal?
    a) Caecum b) Rectum c) Colon d) All of these
21. During starvation, what will be sequence of ending of food stuffs?
    a) Carbohydrate-fat-protein b) Carbohydrate-protein-fat
    c) Fat-protein-carbohydrate d) Fat-carbohydrate-protein
22. The islets of Langerhans are found in
    a) Pancreas b) Stomach c) Liver d) Alimentary canal
23. Which is the hardest material of the human body?
    a) Dentine b) Enamel c) Teeth d) Bone
24. Characteristic of mammalian liver is
    a) Kupffer’s cells and leucocytes b) Leucocytes and canaliculae
    c) Glisson’s capsules and Kupffer’s cells d) Glisson’s capsule and leucocytes
25. Least peristalsis occurs in
    a) Rectum b) Stomach c) Oesophagus d) Duodenum
26. Digestive enzymes are
    a) Hydrolases b) Oxidoreductases c) Transferases d) Lyases
27. Scurvy is caused due to deficiency of vitamin
    a) B b) A c) E d) C
28. Duodenum has characteristic Brunner’s gland, which secrete two hormones called
    a) Kinase, oestrogen b) Secretin, cholecystokinin
    c) Prolactin, parathormone d) Oestradiol, progesterone
29. The lacteals are found in
    a) Salivary glands b) Villi c) Spleen d) Mammary glands
30. The pH value at which pepsin becomes inactive is
    a) Below pH 2 b) Below pH 5 c) Above pH 3 d) Above pH 5
31. Intestional lymphangiectasia is characterised by
    a) Dilated intestinal lacteals b) Contracted intestinal lacteals
    c) Descreased number of peneth cells d) Increased number of peneth cells

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32. Deficiency of cyanocobalamine causes
    a) Pernicious anaemia b) Pellagra c) Ketomalacia d) Ariboflavinosis
33. Which combination is responsible to increase the cholesterol level of the blood?
    a) Saturated fats and proteins b) Unsaturated fats and proteins
    c) Both saturated and unsaturated fats d) Saturates fats and polyunsaturated fatty acids
34. FAD is a coenzyme derived from
    a) Riboflavin b) Vitamin-B12 c) Thiamine d) Niacin
35. What name would you suggest for a thoroughly mixed food the with gastric juices by the churning
    movements of muscular stomach wall?
    a) Bolus b) Chyme
    c) Either bolus or chyme d) None of these
36. Which of the following is the constituent of pancreatic juices?
    a) Sodium bicarbonate and three proenzymes
    b) Potassium bicarbonate and three proenzymes
    c) Sodium bicarbonate and five proenzymes
    d) Potassium bicarbonate and five proenzymes

38. Which one serves as a passage for both food and air?
    a) Larynx b) Pharynx c) Gullet d) Glottis
39. Which of the following animal exhibits diphyodont dentition?
    a) Snakes b) Crocodiles c) Horse d) Elephant
40. Choose an incorrect statement regarding the functions of large intestine
    a) Large intestine absorbs the products of bacterial digestion
    b) Absorption of electrolytes, water and some amino acids occur mainly in the stomach
    c) Mucous lubricates faecal matter
    d) Feces are temporarily stored in the rectum
41. Generally, new born babies shows a symptoms of a mild form of jaundice which is known as
    a) Prehepatic jaundice b) Hepatic jaundice
    c) Neonatal jaundice d) Physiological jaundice
42. Which one of the following combination of vitamins are synthesised by bacteria?
    a) Vitamin-B12 and K b) Vitamin-B1 and B c) Vitamin-B and B12 d) Vitamin-K and D
43. The best source of vitamin-B1is
    a) Whole Wheat bread b) Cod liver oil c) Egg d) Curd

44. Which one of the following statements is/are correct?
    I. Frenulum is the fold by which tongue is attached to the floor of mouth or oral cavity
    II. Lower surface of the tongue has little projection which bears taste buds
    III. Pharynx is the common passage for food and air
    IV. Sphincter of oddi guards and regulates the opening of stomach into duodenum
    V. Colon has 3 parts an ascending, a transverse and a descending part and the later opens into the rectum
    a) I, II and III are correct b) IV and V are correct c) I, II, III, IV and V d) I, III and V are correct
45. Wisdom teeth in human is
    a) 3rd molar and 4 in number b) 3rd molar and 2 in number
    c) 2nd molar and 4 in number d) 2nd molar and 2 in number
46. Which one of the correct option for labels A, B and C in the given diagram? a) A-Liver, B-Mucosa, C-Peritoneum b) A-Liver, B-Circular muscle layer, C-Serosa
    c) A-Pancreas, B-Mucosa, C- Peritoneum d) A-Pancreas B- Submucosa, C- Serosa
47. What is the medium of human saliva?
    a) Acidic b) Basic c) Neutral d) Highly acidic
48. Small projections found on the upper surface of tongue are called
    a) Frenulus b) Taste buds c) Sulcus terminals d) Papillae
49. The Digestive enzyme that is not found in human pancreatic juice is
    a) Nucleotidase b) Nuclease c) Trypsin d) Lipase
50. Which one of the following enzymetic reaction is incorrect?

a) Nucleic acids Nucleotidase → Nitrogen bases +
Pentose sugar
b) Fat
(Emulsified)
Lipase → Pancreatic
Fatty acids + Diglycerids

c) Starch α amylase → Pancreatic
Maltose + Isomaltose + α
dextrias
d) Proteins Pepsin → Peptones + Proteose

51. Bile salts act as activator of which enzyme?
    a) Pepsinogen b) Trypsinogen c) Lipase d) Pancreatic amylase
52. Sphincter of Oddi guards
    a) Hepato-pancreatic duct b) Common bile duct
    c) Pancreatic duct d) Cystic duct
53. Stomach located on the upper left portion of abdominal cavity has three parts, a …A… portion into which
    the oesophagus open, a …B… region and a …C… portion, which opens into small intestine.
    Identify A, B and C to complete the given NCERT statement and choose the correct option accordingly
    a) A-cardiac, B-fundic, C-pyloric b) A-fundic, B-cardiac, C-pyloric
    c) A-pyloric, B-cardiac, C-fundic d) A-pyloric, B-fundic, C-cardiac
54. The opening of the common bile duct is guarded by sphincter?
    a) Pyloric b) Ileo-caecal c) Oddi d) Muscularis mucosa
55. Which part of small intestine opens into large intestine?
    a) Colon b) Jejunum c) Ileum d) Duodenum

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56. Which one of the following pairs is not correctly matched?
    a) Vitamin-B12- Pernicious anaemia b) Vitamin-B6- Loss of appetite
    c) Vitamin-B1- Beri-beri d) Vitamin-B2- Pellagra
57. In human teeth, which helps in cutting?
    a) Canine b) Incisor c) Molar d) Premolar
58. Medium, in which pepsin is active?
    a) Neutral b) Alkaline c) Acidic d) Isotonic
59. Glisson’s capsules are found, in which organ of mammals?
    a) Stomach b) Kidney c) Testis d) Liver
60. What is the process of food passage from buccal cavity to the site of water and mineral absorption
    a) Mouth → Buccal cavity → Pharynx → Oesophagus → Duodenum → Stomach → lleum → Large intestine
    b) Mouth → Buccal cavity → Pharynx → Oesophagus → Stomach → Duodenum → lleum → Caecum →
    Rectun
    c) Mouth → Buccal cavity → Pharynx → Larynx → Stomach → Small intestine → Large intestine
    d) Mouth to buccal cavity → Pharynx → Food pipe → Stomach → Large intestine → Small intestine
61. Examination of blood of a person suspected of having anaemia, shows large, immature, nucleated
    erythrocytes without haemoglobin. Supplementing his diet with which of the following is likely to alleviate
    his symptoms?
    a) Thiamine b) Folic acid and cobalamin
    c) Riboflavin d) Iron compounds
62. What do you mean by dental formula?
    a) An arrangement of teeth in mouth in the order of I, C, PM, M
    b) An arrangement of teeth in each half of the upper and lower jaw in the order of I, C, PM, M
    c) An arrangement of teeth in upper jaw in the order to I, C, PM, M
    d) An arrangement of teeth in the lower jaw in the order to I, C, PM, M
63. Improper balance diet may cause
    a) Self-poisoning b) Scarcity of moisture in eyes
    c) Feeble muscles d) All of the above
64. Which of the following metals is present in vitamin-B12?
    a) Cobalt b) Copper c) Zinc d) Magnesium
65. If pancreas is removed, the compound, which remains undigested is
    a) Carbohydrates b) Fats c) Proteins d) All of these
66. Cattle fed with spoilt hay to sweet clover, which contains dicumarol
    a) Are healthier due to a good diet b) Catch infections easily
    c) May suffer vitamin-K deficiency and prolonged
    bleeding
    d) May suffer from beri-beri due to deficiency of
    vitamin–B
67. Crypts of Leiberkuhn are involved in
    a) Secretion of succus entericus b) Secretion of rennin
    c) Secretion of ptyalin d) Digestion of food
68. Ptyalin is inactivated by a component of gastric juice known as
    a) Pepsin b) Mucus c) Rennin d) HCl
69. Which combination is not correctly matched?
    a) Vitamin-K – Faulty in blood clotting b) Vitamin-C – Pyorrhoea, crack on mouth corner
    c) Vitamin-B2 – Beri-beri d) Vitamin-A – Night blindness
70. How many deciduous teeth are present in human?
    a) 22 b) 24 c) 20 d) 18
71. Crypts of Leiberkuhn are present in
    a) Small intestine b) Liver c) Stomach d) Colon
72. Study thoroughly the following statement and identify which of the following is/are correct and incorrect?
    I. Bile salt present in bile is responsible to emulsify the fats in small intestine

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II. Bicarbonates of sodium, potassium, glycocholate and faurocholate of sodium are bile salts
III. The pH of hepatic bile is 8.6, while pH of gall bladder is 7.6 or 7.5
IV. The flow of bile from liver takes place through hepatic duct, common bile duct, -hepatopancreatic
ampulla and finally to the first part of small intestine
V. Gall bladder in rat and horse does not store bile
Choose the correct option
a) I, III and IV are incorrect, while II and V are correct
b) Al statement are correct
c) Statement II and V are incorrect while, I, III and IV are correct
d) All statement are incorrect

73. Read the following statements thoroughly and identify wheather they are true and false. Choose the right
    option accordingly
    I. Bile is produced and stored in the liver and gall bladder, respectively
    II. Common bile duct is the fusion of all the right and left hepatic ducts
    III. Hepato-pancreatic duct opens into the proximal part of the small intestine
    IV. Pancreas consists of two parts, exocrine and endocrine, which secretes insulin and glucagon hormone
    and pancreatic juices containing enzymes, respectively
    V. Pepsinogen, a secretion of chief cells is activated by hydrochloric acid
    VI. Peptides are converted into dipeptides with the action of carboxypeptidase
    a) All statements are true
    b) All statement are false
    c) Statement I, III, IV and V are true while II and VI are false
    d) Statement I, III, V and VI are true while III and IV are false
74. The digestion of starch by amylase is completed in the
    a) Mouth b) Oesophagus c) Stomach d) Duodenum
75. Which of the following fatty acids is not synthesized in the human body?
    a) Glycerol b) Cholesterol c) Linoleic acid d) Both (a) and (b)
76. In horses, rabbits, hares, the cellulose gets digested in the
    a) Caecum b) Stomach c) Appendix d) Rumen
77. Pepsinogen (inactive form) is converted into active form of enzyme pepsin with the help of which of the
    following compound?
    a) Proenzyme b) Hydrochloric acid c) Electrolyte d) Bicarbonates
78. Poison glands of snake are modified
    a) Sebaceous glands b) Ceruminous glands c) Salivary glands d) Endocrine glands
79. In the Absence of enterokinase, the digestion of ………… would be affected in our intestine.
    a) Maltose b) Amino acid c) Albumin d) Starch
80. Vitamin-B1, responsible for normal working of human being, can be best obtained from
    a) Green vegetables and fruits b) Meat and lentils
    c) Whole wheat flour and its derivatives d) All of the above
81. Small finger-like projection, which produce numerous microscopic projections are supplied with a
    network of
    a) Blood capillaries and lacteal b) Blood capillaries only
    c) Lacteal only d) A large lymphoid vessel and valves
82. Vitamin –K deficiency causes
    a) Scurvy b) Xerophthalmia c) Bleeding d) Osteomalacia
83. The largest variety of digestive enzymes is found in
    a) Carnivores b) Herbivores c) Omnivores d) Parasites
84. Pylorus is present between
    a) Small and large intestine b) Pancreas and small intestine
    c) Oesophagus and stomach d) Stomach and duodenum

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85. Identify the type of gastrointestinal hormone based on the functions given below
    I. Stimulates the crypts of Lieberkuhn
    II. Inhibits the secretion of glucagon by alpha cells
    III. Stimulates Brunner’s glands to release mucus
    Chooses the correct option accordingly
    a) I-Gastrin
    II-Duocrinin
    III-Enterokinin
    b) I-Duocrinin
    II-Cholecystokinin
    III-Enterokinin
    c) II-Duocrinin
    II-Cholecystokinin
    III-Villikinin
    d) I-Enterokinin
    II-Somatostatin
    III-Duocrinin
86. Go through the following statements regarding 𝑂𝑟𝑦𝑐𝑡𝑜𝑙𝑎𝑔𝑢𝑠 and select the correct option
    I. Denition is heterodont
    II. Canines are absent
    III. Herbivorous and diastema is present
    IV. Incisors are chisel like and poorly developed
    V. The dental formula is 2033/1023
    a) I, II and III are true, while IV and V are false
    b) III and II and V are true while I and IV are false
    c) I, III and V are true while II and IV are false
    d) All the above are correct
87. Acetylcholinesterase enzyme splits acetylcholine into
    a) Acetone and choline b) Acetic acid and choline
    c) Aspartic acid and acetylcholine d) Amino acid and choline
88. Emulsification of fat will not occur in absence of
    a) Lipase b) Bile pigments c) Bile salts d) Pancreatic juice
89. Which of the following animals eats its prey?
    a) Leech b) Starfish c) 𝑆𝑒𝑝𝑖𝑎 d) Both (b) and (c)
90. Aggregates of lymphoid tissue present in the distal portion of the small intestine are known as
    a) Villi b) Peyer’s patches c) Rugae d) Choroid plexux
91. In the wall of alimentary canal, what is the actual sequence from outer to inner?
    a) Serosa, longitudinal muscle, mucosa, submucosa b) Mucosa, serosa, longitudinal muscle
    c) Serosa, longitudinal muscle, circular muscle,
    submucosa, mucosa
    d) Serosa, longitudinal muscle, submucosa, mucosa
92. Diastema refers to
    a) Gap between the teeth b) Gap between tongue and teeth
    c) Ciliary cells on alimentary wall d) Cell lining along pharynx
93. Which of the following is regarded as the source of instant energy?
    a) Fats b) Carbohydrates and fats
    c) Carbohydrates only d) Minerals and vitamins
94. Enterokinase converts
    a) Trypsinogen to trypsin b) Pepsinogen to pepsin
    c) Chymotrypsin to pepsinogen d) Pepsin to chymotrypsin
95. Which of the following are required in minimum amount by human?
    a) Iron, iodine, carbon, manganese, copper, oxygen b) Iron, iodine, manganese, copper, zinc, fluorine
    c) Iron, iodine, manganese, zinc, hydrogen d) Nitrogen, oxygen, zinc, fluorine
96. Which one of the following is vestigial organ of human?
    a) Hair b) Intestine c) Wisdom teeth d) Muscle of glottis
97. Lysozyme, one of the constituent of the saliva of human being acts like
    a) Antibacterial agent b) Zymogen c) Amylase d) Lipase
98. Which teeth of human are shovel-shaped and used for nibbling, cutting and tearing?
    a) Canines b) Premolars c) Molars d) Incisors
99. Success entericus is

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a) Intestinal juice b) Gastric juice c) Bile juice d) Salivary juice

100. During prolonged hunger strike, what is the correct chronological sequence of ending the food stuff?
     a) Protein-fat-carbohydrate b) Carbohydrate-protein-fat
     c) Fat-proteins-carbohydrate d) Carbohydrate-fat-proteins
101. Which one of the following pair of simple sugar absorption occurs most rapidly in the jejunum and
     stomach?
     a) Glucose and fructose b) Glucose and galactose
     c) Fructose and galactose d) All of the above
102. Succus entericus is secreted by
     a) Goblets cells b) Crypt of Lieberkuhn c) Islets of lengerhans d) Paneth cells
103. Consider the following statement regarding digestion and absorption in mammals. Identify wheather they
     are true or false and select the correct option accordingly
     I. Both Kuffer’s cells and glisson’s capsule are the characteristic of mammalian liver
     II. IN dentition, thecodont means that teeth are embedded in the socket of jaw bones
     III. There are three pair of salivary glands in human beings, out of them parotid, situated beneath the
     tongue are the smallest salivary gland
     IV. Zymogen (inactive form of enzymes) are not the secretions of peptic cells
     a) All statement are true b) All statement are false
     c) I and II are true while III and IV are false d) III and IV are true while I and II are false
104. Digestion and distribution of nutrients both functions are performed by
     a) Blastocoels
     b) Coelom
     c) Spongocoel
     d)
105. Camel in its hump, stores
     a) Water for emergency b) Fat for emergency
     c) Both fat and water for emergency d) Fat and proteins as reserve food for emergency
106. What is the pH of human saliva?
     a) 7.0 b) 7.5 c) 6.8 d) 6.0
107. Bile is composed of bile salts and bile pigments which are
     a) Sodium glycocholate taurocholate and bilirubin, biliverdin, respectively
     b) Bilirubin, biliverdin and sodium glycocholate taurocholate, respectively
     c) Sodium glycocholate, taurocholate and bilirubin, respectively
     d) Sodium glycocholate, taurocholate and biliverdin, respectively

109. Pellagra is caused due to deficiency of

a) Niacin b) Pantothenic acid c) Tocopherol d) Cyanocobalamin

110. Osteomalacia is due to deficiency of
     a) Vitamin-A b) Vitamin-C c) Vitamin-E d) Vitamin-D
111. What is the dental formula of human being?
     a) 2123
     2123 b) 2123
     2213 c) 2114
     2114 d) 2122
     2122
112. Lactose intolerance in adults is related to
     a) Wheat indigestion b) Mushroom indigestion
     c) Milk indigestion d) Barley indigestion
113. Secretion of pancreatic juice is stimulated by
     a) Gastrin b) Secretin c) Enterogasterone d) Enterokinase
114. Which one is correct regarding the number of teeth and dental formula with reference to a child of age
     between 4 to 6 years?
     a) 212
     212×2=20 b) 212
     213×2=24 c) 2103
     2103×2=24 d) 2103
     2003×2=22
115. Which of the following represent bile salts?
     a) Haemoglobin and biliverdin b) Bilirubin and biliverdin
     c) Bilirubin and haemoglobin d) Sodium glycocholate and taurocholate
116. Which is not a disorder of the digestive system?
     a) Jaundice b) Diarrhea c) Emphysema d) Constipation
117. What is the composition of bile?
     a) Bile pigments and bile salts b) Bile pigments and cholesterol
     c) Cholesterol and phospholipids d) All of the above
118. Which one of the following is antioxidant vitamin?
     a) C, E and A b) B1 and B4 c) A, D and E d) B3 and B5
119. Maximum percentage of lipoprotein is in
     a) Chylomicron b) HDL c) Arthritis d) None of these
120. Enzyme sucrose hydrolyses sucrose into
     a) Glucose and galactose b) Glucose and fructose
     c) Two molecule of glucose d) Two molecule of fructose
121. Which part of digestive system is affected in celiac disease?
     a) Large intestine b) Small intestine c) Stomach d) Duodenum
122. Which of the following cells produce HCl?
     a) β–cells b) α-cells c) Oxyntic cells d) Chief cells
123. What is the another name of gastro-oesophageal sphincter?
     a) Pyloric sphincter b) Gastro-duodenal sphincter
     c) Cardiac sphincter d) Sphincter of oddi
124. Deficiency of which essential amino acid leads to deregulation of blood sugar?
     a) Isoleucine b) Valine c) Threonine d) Phenylalanine
125. The essential vitamin for blood coagulation is
     a) Vitamin-B6 b) Vitamin-A c) Vitamin-K d) Vitamin-E
126. What is the main site of amino acids absorption in human’s small intestine?
     a) Duodenum b) Jejunum c) Ileum d) Both (a) and (b)
127. Which of the following represents all proteolytic enzymes?
     a) Erepsin, trypsin, pepsin b) Cholecystokinin, pepsin, gastrin
     c) Lipase, ducrinin, trypsin d) Enterocrinin, gastrin, erepsin
128. Which of the following is a protein-energy malnutrition related disorder?
     a) Kwashiorkor b) Marasmus c) Both (a) and (b) d) Xerophthalmia
129. Identify, wheather the given nutrients are absorbed by the active transport, simple diffusion or facilitated
     transport

I. Glucose
II. Fructose
III. Vitamin-K
IV. Amino acids
Choose the correct option accordingly
a) I-Active transport
II-Active transport
III- Facilited
IV-Simple diffusion
b) I- Facilited transport
II-Simple diffusion
III-Active transport
IV-Active transport
c) I-Active transport
II- Facilited transport
III-Simple diffusion
II-Active transport
d) I-Simple transport
II-Simple transport
III-Facilited transport
IV-Active transport

130. Crypts of Leiberkuhn are example for
     a) Simple tubular gland b) Coiled tubular gland
     c) Compound alveolar gland d) Compound tubular gland
131. Carnassial teeth are modified for
     a) Crushing b) Tearing c) Grinding d) Cutting
132. Hardest part in animal body is
     a) Bone b) Hair c) Dentine d) Enamel
133. By which process, glucose and amino acids are absorbed in the small intestine?
     a) Active transport b) Passive transport c) Osmosis d) Selective absorption
134. The true stomach in ruminants, Where most of digestion takes place is
     a) Rumen b) Omasum c) Reticulum d) Abomasum
135. The layer of cells that secretes enamel of tooth is
     a) Dentoblast b) Ameloblast c) Osteoblast d) Odontoblast
136. Which one of the following elements is essential for the life of animal and not for plants?
     a) Calcium b) Iodine c) Phosphorus d) Potassium
137. The amount of bile released is proportional to the amount of
     a) Fat in meal b) Protein in meal c) Carbohydrate in meal d) All of these
138. Pancreatic secretion and gall bladder contraction are stimulated by
     a) Gastrin b) Enterocrinin c) Enterogasterone d) Cholecystokinin
139. What are the trace components of our food?
     a) Fatty acids b) Minerals and vitamins
     c) Monosaccharides d) Amino acids
140. The beri-beri is a paralytic disease caused by the deficiency of vitamin-B1 (thiamine). It was discovered by
     a) Funk b) G E Foxon c) Eijkman d) Stanley
141. Which of the following is not a source of Vitamin-A?
     a) Carrot b) Mango c) Apple d) Yeast
142. ‘Digestion’ word means
     a) Burning of food b) Oxidation of food c) Hydrolysis of food d) Breakdown of food
143. What is the major site for the conversion of proteins into free amino acids?

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a) Spleen b) Liver c) Intestine d) Kidney

144. Digestion of protein is completed in
     a) Stomach b) Duodenum c) Ileum d) Both (b) and (c)
145. What do you mean by the process of digestion?
     a) Conversion of complex substances into simpler form
     b) Absorption of monomers by the body
     c) Conversion of monomers into polymers
     d) Absorption of water and food
146. The pH of the digestive juices within the human small intestine is between 7.5 and 8.5. This environment is
     slightly
     a) Basic b) Acidic c) Neutral d) None of these
147. Which one of the following statements is true regarding digestion and absorption of food in humans?
     a) Oxyntic cells in our stomach secrete the
     proenzyme pepsinogen b)
     Fructose and amino acids are absorbed through
     intestinal mucosa with the help of carrier ions like
     Na+
     c) Chylomicrons are small lipoprotein particles that
     are transported from intestine into blood
     capillaries
     d) About 60% of starch is hydrolysed by salivary
     amylase in our mouth
148. The given schematic diagram diepicts heterodont teeth and its thecodont arrangement. Find the correct
     labelling for 𝐴-𝐷 from the options given below a) A-Incisor, B-Canine, C-Premolar, D-Molar b) A-Molar, B-Premolar, C-Canine, D-Incisor
     c) A-Incisors, B-Premolar, C-Canine, D-Molar d) A-Molar, B-Premolar, C-Incisor, D-Canine
149. Which of the following is not a function of liver?
     a) Production of bile b) Production of insulin
     c) Glycogen storage d) Detoxification
150. Choose the incorrect statement regarding human digestive system with reference to a normal person
     a) Human saliva is slightly acidic
     b) In human being, four pair of salivary gland secretes saliva
     c) The quantity of saliva in adult man may be-1 to 1.5 L day
     d) Enzyme amylase present in saliva is responsible for the break down of starch into simple sugar
151. What type of teeths are absent in rabbit?
     a) Molars b) Premolars c) Canines d) Incisors
152. Which one is correctly matched?
     a) Vitamin-E – Thiamine b) Vitamin-D – Riboflavin
     c) Vitamin-B1 – Tocopherol d) Vitamin –B12- Cyanocobalamin
153. Nutritional disorder, keratomalacia is caused by the deficiency of vitamin
     a) Calciferol b) Retinol c) Nicotinamide d) Biotin
154. How many human teeth appear twice during the life span of an individual?
     a) 16 b) 32 c) 22 d) 20
155. What is the correct dental formula of rat?
     a) I2
     2C1
     1PM2
     2M3
     3 b) I2
     1C1
     1PM2
     2M3
     3 c) I1
     2C2
     1PM2
     2M3
     3 d) I1
     1 ,C0
     0 ,PM0
     0 ,M3
     3
156. Secretin and cholecystokinin are digestive hormones. They are secreted in

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a) Oesophagus b) Ileum c) Duodenum d) Pyloric

157. The cells, which destroy worn out white and red blood cells, bacteria and micro-organisms passing from
     the liver are
     a) β-cells b) T- cells c) Kupffer’s cells d) Oxytocin cells
158. Go through the following statements regarding starch digestion. Separate true and false statements and
     select the correct option accordingly
     I. Digestion of starch starts from the mouth
     II. Around 30% of the starch is digested in the stomach
     III. Digestion of food requires the action of pancreatic juices
     IV. Digestion of food is completed in the longest part of the alimentary canal
     a) All are true b) I, III and IV are true while II is false
     c) II and III are false while III and I are true d) II and, IV are false while III and I are true
159. Which of the following secretions gets mixed with the food (hydrolysed) in the small intestine?
     a) Bile, pancreatic juices and intestinal juices
     b) Pancreatic juices, intestinal juices and gastric juices
     c) Gastric juices, intestinal juices and biles
     d) Bile, gastric juices and salivary uices
160. The absorption of glycerol, fatty acids and monoglycerides takes place by the
     a) Lymph vessels within the villi b) Wall of the stomach
     c) Colon d) Capillaries within the villi
161. Reserve flow of food in the stomach of rabbit is prevented by
     a) Pyloric sphincter b) Ileo-caecal valve c) Cardiac sphincter d) Uvula
162. Graveyard for RBCs is
     a) Liver b) Spleen c) Kidney d) Lymph glands
163. Go through the following statement regarding the physiology of digestion and identify wheather they are
     true or false
     Choose an appropriate option from the codes given below
     I. Largest variety of hydrolases are present in omnivores, while the herbivores, generally lack digestive
     enzymes
     II. Digestive enzymes are of four types namely, amylase, proteinases, lipases and nucleases
     III. Proteinases are also known as proteases which are released in the active form because the proteins,
     either cellular or extracellular, all are hydrolysed by them in the absence of food
     IV. Hydrolases and cholecystokinin are secreted by the exocrine part of pancreas
     a) All statement are true
     b) All statement are false
     c) Statements III and IV are true while I and II are false
     d) Statements I and II are true while III and IV are false
164. Pellagra is caused by deficiency of
     a) Pyridoxine b) Niacin c) Folic acid d) Biotin
165. Drowsiness after a heavy meal occurs due to
     a) Increased blood pressure in the brain b) Decreased pulse rate
     c) Reduced blood pressure in the brain d) Increased pulse rate
166. The mucosal layer in the stomach form irregular folds known as
     a) Villi b) Lumen
     c) Rugae d) Crypts of Lieberkuhn
167. Where the liver is located in human body?
     a) In abdominal cavity just above diaphragm b) In thoracic cavity
     c) Above the thoracic cavity d) In abdominal cavity, just below the diaphragm
168. Enterogasterone is
     a) Hormone secreted by gastric mucosa b) Enzyme secreted by mucosa

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c) Hormone secreted by duodenal mucosa d) Secreted by endocrine gland related to digestion

169. Bile salts help in
     a) Emulsification b) Mastication c) Absorption d) Alkalination
170. Which vitamin is the most important one digestive health?
     a) Vitamin-A b) Vitamin-D c) Vitamin-E d) Vitamin-B
171. Facilated transport, facilitates the absorption of
     a) Fructose b) Amino acid c) Glucose d) Both (a) and (b)
172. Maximum absorption of water occurs in
     a) Colon b) Rectum c) Large intestine d) Small intestine
173. Which one of the following disorders and characteristic is correctly matched?
     a) Cystic fibrosis – Production of thick mucus
     that clogs airways
     b) Sickle cell – Brain deterioration
     anaemia beginning at months of age
     c) Achondroplasia – Extra fingers or toes
     d) Huntington’s – Skeletal, eye and cardiovascular defects
     disease
174. Which of the following has the highest pH?
     a) Gastric juice
     b) Bile
     c) Pancreatic juice
     d) Secretions of the intestinal glands
175. The following statements are based on the digestion and absorption of food. Select the correct and
     incorrect statements and choose an option accordingly from the codes given below
     I. Active absorption of monosaccharides in the stomach and jejunum is carried out by facilitated transport
     II. Most of the amino acids (above 95%) are absorbed in the duodenum and jejunum parts of the small
     intestine
     III. Food is digested completely before absorption and is used by the body tissues
     IV. Absorption of water from the small intestine is concerned with the absorption of salts and digested
     food in order to maintain an osmotic balance with the blood
     a) I, II, IV and V are correct, while III is incorrect
     b) I, II, III are correct, while IV and V are incorrect
     c) III, IV and V are correct, while I, II are incorrect
     d) IV and V are correctly, while I, II, III are incorrect
176. The gastric juice contains
     a) Trypsin, pepsin, lipase b) Pepsin, lipase, rennin
     c) Pepsin, amylase, trypsin d) Trypsin, pepsin, rennin
177. Compound saccular glands are
     a) Intestinal glands b) Salivary glands c) Gastric glands d) Endocrine glands
178. Alcohol is present, in which of the following?
     a) Vitamin-D b) Vitamin-B2 c) Vitamin-B5 d) Vitamin –C
179. Which of the following enzyme is not a component of human saliva?
     a) 𝛂-amylase b) Lysozyme c) Lipase d) None of the above
180. Which enzyme is present in human saliva?
     a) Ptylin b) Pepsin c) Enterokinase d) Maltase
181. Which of the following scales are similar to mammalian teeth?
     a) Cycloid b) Placoid c) Ganoid d) Cninoid
182. Read the statement A and B.
     A. In human, small intestine is the longest protein of the alimentary canal.
     B. Absorption of digested food requires a very large surface area.

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Identify the correct choice on the two statements.
a) Statement A is correct, B is wrong b) Statement A and B are both correct
c) Both the statements are wrong d) Statement B is correct, A is wrong

183. Among mammals, a significant role in the digestion of milk is played by
     a) Rennin b) Invertase c) Amylase d) Intestinal bacteria
184. Fats are emulsified by the bile juice because it contains
     a) Enzyme b) Esterase c) Bile salt d) Bile pigment
185. Note the following
     I. Dentition is heterodont.
     II. Canines are poorly developed.
     III. Incisors are chisel-like poorly developed.
     IV. Herbivorous and diastema is present.
     V. The dental formula is I 2/1, C 0/0, Pm 3/2, M 3/3
     Which of the above are true for 𝑂𝑟𝑦𝑐𝑡𝑜𝑙𝑎𝑔𝑢𝑠?
     a) I, II and IV b) I, IV and V c) I, II, IV and V d) III, IV and V
186. Which of the following is not a cause of indigestion?
     a) Over eating b) Anxiety c) Over sleeping d) Food poisioning
187. Which one of the following is the correct matching of the site of action on the given substrate enzyme
     action upon it and the end-product?
     a) Duodenum− Triglycerides Trypsin → Monoglycerides
     b) Small intestine−Starch α−Amylase → Disaccharide(maltose)

c) Small intestine− Proteins Pepsin →
Amino acids
d) Stomach− Fats Lipase → Micelles

188. During intake of food, what prevents the entry of food into the glottis (opening of wind pipe)?
     a) Glottis itself prevents into the entry of food glottis
     b) Food entry is prevented by air present in wind pipe
     c) Food entry into glottis is prevented by annular rings of pharynx
     d) Food entry is prevented by epiglottis into the glottis
189. Which one of the following sugar is most rapidly absorbed in the human gut?
     a) Glucose b) Fructose c) Galactose d) Sucrose
190. Which is a symbiont inside human intestine?
     a) 𝑆𝑡𝑟𝑒𝑝𝑡𝑜𝑐𝑜𝑐𝑐𝑢𝑠 𝑝𝑛𝑒𝑢𝑚𝑜𝑛𝑖𝑎𝑒 b) 𝑁𝑒𝑖𝑠𝑠𝑒𝑟𝑖𝑎 𝑚𝑒𝑛𝑖𝑛𝑔𝑖𝑡𝑖𝑠 c) 𝐸.𝑐𝑜𝑙𝑖 d) 𝑇𝑟𝑒𝑝𝑜𝑛𝑒𝑚𝑎 𝑝𝑎𝑙𝑙𝑖𝑑𝑢𝑚
191. Which is the inactive form of enzyme, pepsin?
     a) Pepsinogen b) Protease c) Trypsin d) Peptones
192. The deficiency of a vitamin, which causes keratomalacia is
     a) Vitamin-K b) Vitamin-D c) Vitamin-A d) Vitamin-E
193. Animals consuming only plant materials are referred as
     a) Herbivorous b) Carnivorous c) Omnivorous d) Insectivorous
194. Substrate for the enzyme amylase is
     a) Nucleic acids b) Protein c) Starch d) Fat
195. Vitamin-D is synthesized in skin by the action of sunlight on
     a) Cholesterol b) 7-hydroxy cholesterol
     c) Cephalin cholesterol d) All of the above
196. Common bile duct is formed by the fusion of
     a) Pancreatic duct and cystic duct b) Pancreatic duct and hepatic duct
     c) Pancreatic duct, hepatic duct and cystic duct d) Hepatic duct and cystic duct
197. Given below the diagram of the transverse section of alimentary canal. Label it correctly and choose the
     correct option accordingly

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a) A-Muscularis; B-Serosa; C-Submucosa; D-Mucosa
b) A-Muscularis; B-Serosa; C-Mucosa; D-Submucosa
c) A-Serosa; B-Muscularis; C-Mucosa; D-Submucosa
d) A-Serosa; B-Muscularis; C-Submucosa; D-Mucosa

198. Vitamin necessary for normal functioning of liver, clotting of blood and preventing haemorrhage is
     a) Tocopherol b) Phylloquinone c) Cyanocobalamin d) Riboflavin
199. Absorption of fat occurs through the process of
     a) Active transport b) Passive transport c) Osmosis d) Simple diffusion
200. Which is not used up in human body?
     a) Calcium b) Phosphorus c) Zinc d) Barium
201. The inflammation of intestinal tract is due to the infection of which microorganism?
     a) Bacteria b) Virus c) Fungus d) Both (a) and (b)
202. Which of the following enzymes digests protein in stomach?
     a) Trypsin b) Pepsin c) Erepsin d) None of these
203. A young infant may be feeding entirely on mother’s milk, which is white in colour but the stools, which the
     infant passes out is quite yellowish. This yellow colour is due to
     a) Intestinal juice b) Bile pigments passed through bile juice
     c) Undigested milk protein casein d) Pancreatic juice poured into duodenum
204. Go through the following statements regarding digestion and absorption is humans. Identify the incorrect
     statements and choose a correct option accordingly
     a) If breast feeding is replaced by less nutritive food lacking protein and calories, the infant (below 14
     eqn) are likely to suffer from marasmus and kwashiorkor
     b) Bile salts of bile juice activates enzyme lipase
     c) Lipase present in the pancreatic juices is the principal enzyme for digestion of fat
     d) Medulla oblongata of hind brain control reflex action of vomiting
205. What are the various type of secretions that are mixed with the food to facilitate the digestion of food in
     the intestine?
     a) Bile salts, bile pigment and gastric juices
     b) Bile, pancreatic juices and intestinal juices
     c) Bile, chymotrypsinogen and trypsinogen
     d) Bile salts, bile pigments and succus enterics
206. Trypsinogen is converted into active trypsin by the action of
     a) Cholecystokinin b) Enterocrinin c) Enterokinase d) Secretin
207. Which of the following does not match?
     a) Pancreas- Glisson’s capsule b) Antigen- Antibody
     c) Thyroid- Goitre d) Enzyme- Substrate
208. Which of the following is involved in the catalysis of link reaction during aerobic respiration?
     a) Vitamin-A b) Vitamin-B1 c) Vitamin-B6 d) Vitamin-K
209. In human, teeth are
     a) Homodont and polyphyodont b) Heterodont and polyphyodont
     c) Homodont and diphyodont d) Heterodont and diphyodont
210. FAD, coenzyme is derived from
     a) Vitamin-B1 b) Vitamin-B3 c) Vitamin-B2 d) Cyanocobalamin

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211. Which of the following is/are the major components of food?
     a) Proteins b) Cereals
     c) Fats and it derivatives d) All of these
212. The pH of the digestive juices varies in human intestine. What does it means?
     a) Medium is slightly acidic b) Medium is slightly basic
     c) Medium varies from acidic to basic d) Neither basic nor acidic
213. In human body, the role of bile salts in digestion is to
     a) Act as coenzymes during the digestion of
     carbohydrates
     b) Emulsify fats and facilitate their absorption
     c) Aid in the break-up of proteins into amino acids
     and their absorption
     d) Stimulate the pancreas to release its enzymes
214. When breast feeding is replaced by less nutritive food low in proteins and calories; the infants below the
     age of one year are likely to suffer from
     a) Marasmus b) Rickets c) Kwashiorkor d) Pellagra
215. Read the following statements regarding the digestive system and select the correct statement
     a) Oesophagus passes through neck, thorax and diaphragm and open into stomach
     b) Stomach is located in the upper right portion of the abdominal cavity
     c) Stomach, a J-shaped organ is the longest organ of alimentary canal
     d) Caecum, a small blind sac is a part of small intestine and host symbiotic bacteria
216. Which part of the small intestine absorb iron, calcium and amino acids?
     a) Duodenum b) Jejunum c) Ileum d) Both (a) and (b)
217. Which of the following is called as a detritivore?
     a) An animal feeding on decaying organic matter b) An animal feeding on a plant
     c) A plant feeding on an animal d) An animal feeding on another animal
218. Bile salts help in
     a) Digestion of fat b) Digestion and absorption of fat
     c) Digestion of protein d) Digestion of protein and fat
219. Go through the following statements regarding the absorption of nutrients. Identify wheather they are
     true or false then choose the correct option accordingly
     I. Absorption of monosaccharides, alcohol, some water and medicines like asprin occurs in the stomach
     II. Fatty acids cannot be absorbed directly
     III. Glycerol can reach into the blood and lymph directly
     IV. Maximum absorption of water (90%) takes place in the small intestine
     V. Large intestine and mouth are not the site of absorption
     a) I, II and IV are true while III and V are false
     b) I, II, III are true while IV and V are false
     c) II, III and IV are false while I and V are true
     d) I and II are false while III, IV and V are true
220. Inadequate protein intake leads to kwashiorkor. The subsequent oedema is most closely related to
     inadequate synthesis of which protein?
     a) Gamma globulin b) Glucagon c) Insulin d) Albumin
221. What will happen if the secretion of parietal cells of gastric glands is blocked with an inhibitor?
     a) Gastric juice will be deficient in chymosin b) Gastric juice will be deficient in pepsinogen
     c) In the absence of HCl secretion, inactive
     pepsinogen is not converted into the active
     enzyme pepsin
     d) Enterokinase will not be released from the
     duodenal mucosa and so trypsinogen is not
     converted to trypsin
222. The intestinal tract infections are not caused by which of the following organism?
     a) Tapeworm b) Roundworm c) Lactobacilli d) Hookworm
223. In the process of digestion and absorption, the peristalsis movement in alimentary canal from oesophagus
     to rectum is produced by

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a) Unstriped muscle of muscular coat b) Visceral peritoneum
c) Meissner’s plexus of submucosa d) Epithelium layer of mucosa

224. Which combination is mismatched?
     a) Vitamin- D-Rickets b) Thiamine- Beri-beri c) Vitamin-K-Sterility d) Niacin-Pellagra
225. Curdling of milk in small intestine takes place due to
     a) Trypsin b) Rennin c) Ptyalin d) Chymotrypsin
226. Pepsinogen is secreted by
     a) Chief cells b) Oxyntic cells c) Mast cells d) Parietal cells
227. Kupffer’s cells are present in
     a) Liver b) Small intestine c) Pancreas d) Thyroid gland
228. Why the stool of a breast feeding baby is quite yellowish in colour?
     a) Due to undigested milk proteins
     b) Due to pouring of pancreatic juices into the duodenum
     c) Due to the bile pigment of bile juices
     d) Due to the enzymes present in saccus entricus
229. Food is masticated with the help of which part of teeth?
     a) Enamel b) Root c) Dentine d) None of these
230. Maltose gives rise to two molecules of
     a) Fructose b) Lactose c) Glucose d) Sucrose
231. Lipids, Which can be found in oil based salad dressings and ice cream, during digestion are splitted into
     a) Fatty acids and glycerol b) Glycerol and amino acids
     c) Glucose and fatty acids d) Glucose and amino acids
233. Chief cells of gastric glands are
     a) Simple tubular b) Coiled tubular c) Branched tubular d) Compound tubular
234. Which one of the following vitamin is water soluble as well as have antioxidant property?
     a) Vitamin-C b) Vitamin B1 c) Vitamin-P d) Vitamin-B9
235. Thiamine (B1) deficiency results in
     a) Wernicke’s syndrome b) Korsakoff’s syndrome
     c) Osteonecrosis d) Tunnel vision
236. Which is the correct sequence of 4 layers of alimentary canal from periphery to centre?
     a) Muscularis → Serosa → Mucosa → Submucosa
     b) Serosa → Mucosa → Muscularis → Submucosa
     c) Serosa → Muscularis → Submucosa → Mucosa
     d) Serosa → Mucosa → Submucosa → Muscularis
237. Which part of our body secretes the hormone secretin?
     a) Ileum b) Stomach c) Duodenum d) Oesophagus
238. Which of the following does not play a role in blood coagulation?
     a) Vitamin-K b) Vitamin-D c) Calcium ions d) Fibrinogen
239. Which of the following is an organic molecule needed by the body in small amounts?
     a) Protein b) Zinc c) Vitamin-C d) Monosaccharide
240. In human beings, digestion of proteins, fats and carbohydrates starts from which of the following parts of
     the alimentary canal?
     a) Stomach, intestine and mouth, respectively b) Only from stomach
     c) Intestine, stomach and mouth, respectively d) Only from intestine
241. Continuous bleeding from an injured part of body is due to deficiency of
     a) Vitamin-A b) Vitamin-B c) Vitamin-K d) Vitamin-E
242. Which one of the following pairs of food components in humans reaches the stomach totally undigested?

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a) Protein and starch b) Starch and fat c) Fat and cellulose d) Starch and cellulose

243. Which enzymes are responsible to convert the end product of partially hydrolysed food into simple
     absorbable forms?
     a) Enzymes of succus entericus b) Proteolytic enzyme of pancreatic juice
     c) Enzyme of gastric juice d) All of the above
244. The process of digestion starts from
     a) Stomach b) Oesophagus c) Mouth d) Intestine
245. The process by which absorbed food are utilised by the tissues in the living being for energy, growth and
     maintenance is termed as
     a) Absorption b) Assimilation
     c) Catabolism d) Digestion and absorption
246. Opening of oesophagus into ‘J’-shaped, bag-like structure is regulated by
     a) Pyloric sphincter b) Sphincter of oddi
     c) Ileocaceal sphincter d) Gastro oesophageal sphincter
247. Which of the following part in cow’s stomach is specialized for microbial digestion of plant material?
     a) Rumen b) Reticulum c) Abomasum d) Both (a ) and ( b)
248. Which of the following processes will be affected by the absence of enterokinase?
     a) Lipid → Fatty acid + Glycerol b) Dipeptides → Amino acid
     c) Proteases → Dipeptide d) Amylase → Maltose
249. A large lymph vessel present in the villus of small intestine is called
     a) Crypts b) Lacteal c) Peyer’s patches d) Valve of kerkring
250. Most abundant mineral of animal body is
     a) Iron b) Sodium c) Potassium d) Calcium
251. Taste buds are present on
     a) Small projection found on the upper surface of tongue
     b) Small projection found on the lower surface of tongue
     c) On both the surface of tongue
     d) Behind the tongue
252. The malnutrition disease in man is
     a) Cri-du-chat syndrome b) Klinefelter’s syndrome
     c) Potbelly syndrome d) Edward’s syndrome
253. As you know that HCl is highly acidic (1.5 to 2.0 pH) in the stomach, however, the epithelium of the
     mucosa remains unaffected/undissolved. Why?
     a) Mucous continues to lubricate the inner lining b) Bicarbonates present in the gastric juices protect
     the linings
     c) Both (a) and (b) d) None of the above
254. Digestion of starch starts from the mouth, whereas …A… is the size of digestion mainly for …B….. Choose
     the correct combination of options to complete the given statement
     a) A-stomach; B-protein b) A-stomach; B-starch
     c) A-small intestine; B-protein d) A-small intestine; B-starch
255. The fat soluble vitamin is
     a) B b) C c) K d) H
256. The main function of lacteals in the human small intestine is the absorption of
     a) Glucose and vitamins b) Amino acids and glucose
     c) Water and vitamins d) Fatty acids and glycerol
257. What is frenulum?
     a) It is the fold by which tongue is attached to the floor of oral cavity
     b) It is an adenoid which is present on pharyngeal wall
     c) It is a tonsil like structure on the lateral wall of palate
     d) It is a V-shaped furrow which divides the surface of tongue

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258. The following is a scheme showing the fate of carbohydrates during digestion in the human alimentary
     canal. Identify the enzymes acting at stages indicated as A, B, C and D. Choose the correct option from
     those given. a) A-Amylase, B-Maltase, C- Lactase, D-Invertase
     b) A-Amylase, B- Maltase, C-Invertase, D-Latcase
     c) A-Amylase, B-Invertase, C-Maltase, D-Lactase
     d) A-Amylase, B-Lactase , C- Maltase , D- Invertase
259. Deamination occurs in
     a) Kidney b) Liver c) Nephron d) Both (a) and (b)
260. Vitamin-D is produced in human body in
     a) Muscles b) Nerves c) Skin d) Bone-marrow
261. The diagram given below depicts the digestive system in humans. Label it from A to F and choose the
     correct option accordingly a) A-Parotid gland, B-Liver, C-Larynx, D-Pancreas, E-Transverse colon, F-Caecum
     b) A-Parotid gland, B-Gall bladder, C-Pharynx, D-Pancreas, E-Transverse colon, F-Caecum
     c) A-Parotid gland, B-Liver, C-Pharynx, D-Pancreas, E-Ascending colon, F-Caecum
     d) A-Parotid gland, B-Gall bladder, C-Thymus, D-Pancreas, E-Ascending colon, F-Caecum
262. Chymotrypsin is produced by
     a) Liver b) Pancreas c) Stomach d) Duodenum
263. Dental formula of rabbit is

a) I2
1 C0
0Pm3
2 M3
3 b) I1
2 C0
2Pm2
0 M3
3 c) I1
2 C0
2Pm3
0 Pm3
3 d) I2
2 C1
1Pm2
2 M3
3

264. Vitamin-B12is available to ruminants by
     a) Plants b) Microorganisms in caecum
     c) Animals d) All of the above
265. Which of the following enzymes carries out the initial step in the digestion of milk in humans?
     a) Rennin b) Lipase c) Trypsin d) Pepsin
266. Process of absorption of nutrients is carried out by
     a) Passive transport b) Facilitated transport c) Active transport d) All of the above
267. Part of bile juice useful in digestion is
     a) Bile salt b) Bile pigment c) Bile matrix d) All of these

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268. Bile helps in the digestion of fat through
     a) Emulsification b) Alkalinity c) Forming micelles d) All of these
269. Which hormone is also known as Gastric Inhibitory Peptide (GIP)
     a) Enterokinase b) Enterogastrone
     c) Cholecystokinin d) Vasoactive intestinal Peptide (VIP)
270. Salivary amylase is also known as
     a) Ptyalin b) Gastrin c) Glyoxylase d) Pepsin
271. Choose true and false statements regarding the digestive glands of humans
     I. It is a compound gland as it posseses both exocrine and endocrine parts
     II. Exocrine parts secretes alkaline pancreatic juices
     III. Endocrine part secretes hormones like insulin and glucagon
     IV. They are surrounded by glisson’s capsule
     V. Secretion of these gland’s forms gastric juices
     Pick the correct option accordingly
     a) I, II, III are true while IV and V are false b) I, II, III are false while IV and V are true
     c) All statement are true d) All statement are false
272. The deficiency of this vitamin is known to cause abortion in early pregnancy of rat?
     a) Retinol b) Calciferol c) Tocopherol d) Naphthoquinone
273. Starch is converted to maltose by the action of
     a) Invertase b) Amylase c) Sucrose d) Maltase
274. What is the correct labelling of diagram given below? Choose the correct option accordingly a) A-Fundic portion, B-Cardiac region, C-Pyloric region, D-Food pipe, E-Wind pipe
     b) A-Fundus, B-Pyloric region, C-Cardiac region, D-Oesophagus, E-Duodenum
     c) A-Fundic region, B-Cardiac region, C-Pyloric region, D-Oesophagus, E-Duodenum
     d) A-Cardiac region, B-Pyloric region, C-Fundic region, D-Oesophagus, E-Duodenum
275. Go through the following statements regarding the disorders of the digestive system. Choose the correct
     statements and select appropriate option from the codes given below
     I. Indigestion is caused by the poor supply of digestive enzyme, overeating, anxiety and a lot of junk food
     II. Constipation, an irregular movement of bowl is caused due to poor habits, fiberless diet, emotional
     stress and certain drugs
     III. Indigestion can be caused by milk of magnesia
     IV. Ejection of stomach content is controlled by hypothalamus of prosencephalon
     a) All statements are correct b) All statements are incorrect
     c) I and II statements are correct d) III and IV statements are correct
276. Which of the following is a correct dental formula for the child falling under age group 5 to 6 yr?
     a) I 2/2, C 1/1, Pm 2/2, M 0/0 b) I 2/2, C 1/1, Pm 2/2, M 3/3
     c) I 1/1, C 2/2, Pm 2/2, M 3/3 d) I 2/2, C 2/2, Pm 1/1, M 3/3
277. Kupffer’s cells are
     a) Phagocytic b) Non-phagocytic c) Myosin d) Fibrin
278. In which of the following secretions, the enzymes, like maltase, isomaltase, sucrase, lactase, enterokinase,
     aminopeptidase, dipeptidase, nucleosidases, nucleotidases and α-dextrinase are present?
     a) Pancreatic juices b) Intestinal juices c) Gastric juices d) Both (a) and (b)
279. Liver of man is
     a) Bilobed b) Three-lobed c) Four-lobed d) Five-lobed
280. By which process, the end products of milk sugar in small intestine are absorbed?

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a) Passive transport b) Active transport c) Facilitated transport d) Osmosis

281. Success entericus is secreted by
     a) Crypts of Leiberkuhn b) Brunner’s glands c) Both (a) and (b) d) None of these
282. The gastrointestinal functions like, secretion and motility is controlled by which system?
     a) Intrinsic neural system b) Extrinsic neural system
     c) Both (a) and (b) d) None of the above
283. Complete the equation.
     Nucleic acids Nucleases → Nucleotides →⋯…….
     a) Monoglycerides b) Diglycerides c) Disaccharides d) Nucleosides
284. Pulp cavity of teeth is lined by
     a) Odontoblast b) Chondroblast c) Osteoblast d) Amyloblast
285. What is gastroporesis?
     a) Inflammation of the lining of the stomach
     b) Stomach content flows back up into the oesophagus
     c) Delayed movement of food from the stomach to the small intestine
     d) Bleeding in the digestive tract
286. The gastric juices contain
     a) Trypsin, rennin, pepsin b) Pepsin, trypsin, amylase
     c) Pepsin, rennin, carbohydrates d) Pepsin, lipase, rennin
287. The sphincter of Oddi found in man, guards the
     a) Pancreatic duct b) Hepatopancreatic duct
     c) Bile duct d) Cystic duct
288. Which of the following is the largest gland in an adult man?
     a) Thymus b) Liver c) Thyriod d) Pancreas
289. Go through the following statements regarding the absorption of fats. Find correct and incorrect
     statements and choose an option accordingly from the codes given below.
     I. Micelles and chylomicron are concerned with the absorption of fats
     II. Chylomicrons are water soluble dropelets of fat which contains triglycerides, sterol and phospholipids
     III. Micelles are water soluble droplets of fatty acids and glycerols which are formed by the action of bile
     pigments on fats and glycerol
     IV. Chylomicron, protein coated small vesicles are released from the intestinal cells into the blood stream
     by lacteals
     a) II and IV are correct while I and III are incorrect b) I, III and IV are correct, while II is incorrect
     c) I, II and IV are correct while III is incorrect d) IV and I are correct while II and III are incorrect
290. Wilson’s disease is associated with the abnormal metabolism of
     a) Iron b) Potassium c) Iodine d) Copper
291. Rennin is secreted in which part of alimentary canal?
     a) Stomach b) Kidney c) Duodenum d) Small intestine
292. Cud chewing animals are known as
     a) Frugivorous b) Sanguivorous c) Ruminants d) Cannibals
293. Which component of gastric juices inactivates salivary amylase?
     a) Mucous b) Rennin c) CCl d) Pepsin
294. The abnormal frequent movement of the bowl and increased liquidity of the faeces is called
     a) Vomiting b) Indigestion c) Constipation d) Diarrhoea
295. Gastrointestinal hormones secretion and cholecystokinin secreted by duodenum is responsible for the
     stimulation and contraction of
     a) Pancreas and gall bladder b) Liver, gall bladder and pancreas
     c) Gall bladder and cells of gastric glands d) Salivary glands and gall bladder
296. Which combination of vitamin and respective disease is not correct?
     a) Vitamin B2 – Pellagra b) Vitamin B12 – Pernecious anaemia

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c) Vitamin B5 – Dermatitis d) Vitamin-E – Infertility

297. Which of the following can be absorbed by hepatic caeca?
     a) Glucose and amino acid b) Glucose and lipid
     c) Lipid d) Glucose
298. The process of resynthesis of food materials from simpler food molecules is called
     a) Biosynthesis b) Catabolism c) Absorption d) Assimilation
299. The accumulation of faeces in the rectum and distension of the rectal wall initiates the feeling of defecation
     due to
     a) Defecation reflex b) Deamination
     c) Irregular movement of bowl d) None of the above
300. Pepsin is inactivated at pH
     a) Below 3 b) Below 2 c) Above 5 d) Above 3
301. Which form of fats is absorbed into the intestinal cells?
     a) Micelles b) Chylomicrons c) Fatty acids d) Both (a) and (b)
302. The type of dentition found in human being is
     a) Polyphyodont, thecodont b) Diphyodont and thecodont
     c) Diphyodont and acrodont d) Diphyodont and homodont
303. Which one of the following equation match correctly with the action of enzymes on the given substrate
     and regarding the end product of the reaction?
     a) Stomach ⟶ Fats Lipase → Micelles b) Small intestine ⟶ Protein Pepsin → Amino acid

c) Small intestine ⟶ Starch amylase → Disaccharides d) Duodenum ⟶ Triglycerides Trypsin →
Monoglycerides

304. Bile juice is stored in which organ of human body?
     a) Gall bladder b) Liver c) Kidney d) Pancreas
305. Secretin hormone is secreted from
     a) Stomach and stimulates gastric gland b) Duodenum and stimulates liver
     c) Thyroid and stimulates thyroid gland d) Duodenum and stimulates pancreas
306. The given below diagram represents a duct system of pancreas, liver and gall bladder. Label the diagram
     from A to C a) A-Gall bladder, B-Common bile duct, C-Hepato pancreatic duct, D-Pancreas, E-Pancreatic duct
     b) A-Gall bladder, B-Bile duct, C-Hepato pancreatic duct, D-Pancreatic duct, E-Pancreas
     c) A-Gall bladder, B-Bile duct, C-Pancreatic duct, D-Pancreas, E-Hepato pancreatic duct
     d) A-Gall bladder, B-Common bile duct, C-Pancreas, D-Pancreatic duct, E-Hepato pancreatic duct
307. Hydrolysis of milk sugar gives rise to
     a) Two molecules of lactose
     b) Two molecules of glucose
     c) One molecule of glucose and one molecule of fructose
     d) One molecule of glucose and one molecule of galactose
308. Proportion of which of the following should be increased in diet improve strength and growth of bones?
     a) Vitamin-D, Ca2+ and vitamin-K b) Vitamin-D, Ca2+ and iodine
     c) Vitamin-D, Ca2+ and vitamin-A d) Vitamin-A, Ca2+ and Zn2+
309. The juice containing sodium glycocholate is released under the influence of
     a) Secretin b) Cholecystokinin c) Enterogasterone d) Enterocrinin

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310. Which is the largest gland of human body?
     a) Gastric gland b) Pancreas c) Liver d) Salivary gland
311. Seggregate the following statements into true and false category. Choose the right answer from the codes
     given below
     I. Mucosal epithelium has goblet cells which secrete mucous and helps in lubrication
     II. Mucosa forms gastric glands in the stomach and crypts in between the bases of villi in intestine
     III. Cells lining the villi has brush border or microvilli
     IV. All the four basic layers in the wall of gut never shows modification in different parts of the alimentary
     canal
     a) All the statements are correct b) I, II and III are true while IV is false
     c) I, II and III are false while IV is true d) I, IV and false, while II and III are true
312. The diagram below shows how things get to and from the liver. They are labeled as A, B, C, D, E and F.
     Which one of the following labellings is the correct one? a) A is the hepatic portal vein and E is the hepatic vein
     b) C is the intestine and F is the hepatic portal vein
     c) D is the hepatic portal vein and F is hepatic vein
     d) B is the pancreatic artery and E is the hepatic artery
313. Which of the following is/are essential fatty acids for man?
     a) Arachidonic acid b) Linolenic acid c) Linoleic acid d) All of these
314. Chloragen cells help in
     a) Respiration b) Reproduction c) Circulation d) Nutrition
315. What is the function of buccal cavity?
     a) Mastication of food b) Digestion of fats c) Both (a) and (b) d) None of the above
316. Carboxypeptidase is an enzyme secreted by
     a) Salivary gland b) Stomach c) Gall bladder d) Pancreas
317. In which of the following organ, putrefying bacteria are present?
     a) Intestine b) Colon c) Stomach d) Liver
318. For how much duration, food is stored in the stomach?
     a) 3-4 hours b) 2-4 hours
     c) 4-5 hours d) More than 5 hours but less than 6 hours
319. If for some reason our goblet cells are non-functional, this will adversely affect
     a) Production of somatostatin
     b) Secretion of sebum from the sebaceous glands
     c) Maturation of sperms
     d) Smooth movement of food downwards the intestine
320. Wisdom teeth are
     a) Last molars b) Last premolars c) Incisors d) Canines
321. By which process, absorption of galactose, electrolytes, like Na+ and K+ and some amino acids takes place?
     a) Active process b) Passive process c) Simple diffusions d) Osmosis
322. Angiotensinogen is a protein produced and secreted by

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a) Macula densa cells b) Endothelial cells (cells lining the blood vessels)
c) Liver cells d) Juxtaglomerular (JG) cells

323. Both the crown and root of a tooth is covered by a layer of bony hard substance called
     a) Enamel b) Dentine c) Bony socket d) Cement
324. A balanced diet lacks
     a) Nucleic acid and enzyme b) Fats and carbohydrates
     c) Proteins and vitamins d) Minerals and electrolytes
325. Brown colour of the stool is due to the presence of stercobilinogen and stercobilin, which are the
     derivatives of
     a) Bilirubin b) Biliverdin c) Bile salt d) Bile pigment
326. These absorption of water, alcohol and monosaccharides occur in
     a) Gastric mucosa b) Mucosa of ileum
     c) Intestinal mucosa d) Through out epithelium of stomach
327. The form, in which the synthesised fats are liberated from the intestinal wall into the lymph present in the
     lymphatic capillaries is
     a) Micelles b) Chylomicrons c) Fatty acids d) Both (a) and (b)
328. Which one of the following inhibits the coagulation of blood in the human circulatory system?
     a) Silver affinity cells of gastric epithelium
     b) Liver, situated in the upper right side of abdominal cavity
     c) Delta (𝛿) cells of endocrine part of the pancreas
     d) Brunner’ gland, present in the duodenum of intestine
329. Sphincter of oddi found in human being guards
     a) Opening of ampula into duodenum
     b) Opening of hepatic ducts before joining the cystic duct
     c) Opening of stomach into duodenum
     d) Opening of cystic duct into pancreatic duct
330. The given below diagram represents the gastric glands. Label it from A to D and choose the correct option
     accordingly a) A-Oxyntic cell, B-Chief cell, C-Mucous cell, D-Argentaffin cell
     b) A-Argentaffin cell, B-Oxyntic cell, C-Mucous cell, D-Chief cell
     c) A-G cell, B-Chief cell, C-Mucous cell, D-Argentaffin cell
     d) A-Oxyntic cell, B-G cell, C-Mucous cell, D-Chief cell
331. The innermost layer of human alimentary canal forms numerous finger-like projections in the small
     intestine which are known as
     a) Villi b) Rugae c) Peyer’s patches d) Both (a) and (b)
332. The major site of protein breakdown to form free amino acids is in the environment of
     a) Kidney b) Spleen c) Liver d) Bone-marrow
333. Complete the given equation and choose the correct option accordingly a) A-Caesin, B-Ca2+, C-Peptones b) A-Ca2+, B-Peptones, C-Caesin

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c) A-Paracaesin, B-Ca2+, C-Peptones d) A-Ca2+, B-Paracaesin, C-Peptones

334. In the homeostatic control of blood sugar level, which organs function respectively as modulator and
     effector?
     a) Liver and islets of Langerhans b) Hypothalamus and liver
     c) Hypothalamus and islets of Langerhans d) Islets of Langerhans and hypothalamus
335. Symbiotic bacteria present in the colon of large intestine produce
     a) Cyanocobalamin b) Riboflavin c) Thiamine d) All of these
336. Major site of absorption of nutrients in human beings is
     a) Stomach b) Small intestine c) Large intestine d) Both (a) and (b)
337. Bile secretion is proportional to the concentration of
     a) Protein b) Fat c) Carbohydrate d) None of these
338. In which part of the small intestine, starch is digested
     a) Duodenum b) Jejunum c) Ileum d) All of these
339. Find out the correctly matched pair.
     a) Pepsinogen – Zymogenic cells b) HCl – Goblet cells
     c) Mucus – Oxyntic cells d) Pancreatic juice – Salivary glands
340. In which layer of the wall of alimentary canal, secretory glands are present?
     a) Serosa b) Mucosa c) Muscularis d) Submucosa
341. Consider the following statements regarding the digestion and absorption of food in human and identify
     the correct and incorrect statement
     I. Antipellagra vitamin is nicotinamide which is present in milk, yeast, meat, leafy vegetable and whole
     grains
     II. Deficiency of vitamin thiamine causes loss of appetite, muscle depreciation, fatigue and mental
     confusion
     III. Prolonged deficiency of tocopherol reduces reproductive capacity in human being
     IV. Gastrovascular cavity performs, 𝑖.𝑒., both function digestion and distribution of nutrients
     Choose the correct option accordingly
     a) All statements are incorrect b) All statements are correct
     c) I and II are correct only d) I and II are incorrect only
342. What do you mean by the absorption of food?
     a) It is a process by which the end products of the digestion passes through the intestinal mucosa into
     blood or lymph
     b) It is a process of transportation of digestive food from the human alimentary canal to blood and lymph
     c) It is a process to utilise the absorbed food substances
     d) Absorption is a process by which nutrients are absorbed from the large intestine into the blood and
     lymph through its mucous membrane
343. Name that part of small intestine in which the pyloric region of stomach opens
     a) Duodenum b) Ileum c) Jejunum d) None of the above
344. Secretion of gastric juice is controlled by
     a) Gastrin b) Cholecystokinin c) Enterogastrin d) None of these
345. How many salivary glands are present in human being?
     a) 6 b) 10 c) 8 d) 12
346. Which one is not a part of large intestine?
     a) Rectum b) Caecum c) Ileum d) Colon
347. The lactase hydrolyses lactose into
     a) Glucose b) Glucose and galactose
     c) Fructose d) Glucose and fructose
348. What is cholecystokinin?
     a) Enzyme b) Bile-pigment
     c) Gastro- intestinal hormone d) Lipid

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349. Identify wheather the given statements are true or false in the context of deficiency of essential amino
     acids and choose the correct option accordingly
     I. Incomplete break down of proteins in the digestive system
     II. Deregulation of mood and sleep
     III. Increased production of sulphur
     IV. Decreased amount of niacin
     a) I – True
     II – True
     III – False
     IV – True
     b) I – True
     II – True
     III – True
     IV – False
     c) I – False
     II – True
     III – True
     IV – False
     d) I – True
     II – False
     III – False
     IV – True
350. Which of the following symptoms is related to the deficiency of antioxidant vitamins?
     a) Retrolental fibroplasia b) Truncal and limb atoxia
     c) Scurvy d) All of these
351. Which one is not associated with the secretion of saliva in human being?
     a) Paratoids glands b) Sublinguals glands
     c) Zymogenic cells d) Sub-maxillary glands
352. In intestine, food materials are absorbed through
     a) Villi b) Subtentacular cells c) Sub-mucosa d) Gastric glands
353. Chymotrypsinogen, trypsinogen and nucleases along with amylases and lipases are
     a) Inactive forms of enzyme in gastric juices b) Active enzymes of intestinal juices
     c) Inactive enzymes of pancreatic juices d) Active enzymes of intestinal juices
354. Choose the most appropriate option to describe the composition of human saliva
     a) Amylase, hydrolase b) Electrolytes amylase/ptylin, lysozymes and
     mucous
     c) Amylase/ptylin, mucous d) Ptylin only
355. Production of glucose from amino acids, fatty acids and glycerol is called
     a) Glycogenesis b) Gluconeogenesis c) Glycogenolysis d) Glycolysis
356. With reference to a normal human being, which one of the following statements is not correct?
     a) Human saliva is slightly alkaline b) An adult human may secrete 1 to 1.5 litres of
     saliva per day
     c) Saliva is secreted by six pairs of salivary glands in
     human beings
     d) The salivary enzyme (ptyalin) breaks down
     cooked starch into maltose
357. Which vitamin should not be stored?
     a) Calciferol b) Retinol c) Niacin d) Ascorbic acid
358. Which of the following match is correct?
     a) Rennin – Protein b) Trypsin – Starch c) Invertase – Sucrose d) Amylase – Lactose
359. Which one of the following amino acids is an essential part of human diet?
     a) Glycine b) Phenylalanine c) Serine d) Aspartic acid
360. Sacculus rotundus is a dilated part at posterior end of
     a) Ileum b) Oesophagus c) Ilium d) Colon
361. Which of the following is absorbed from undigested food in the large intestine?
     a) Water and vitamins b) Water and product of bacterial digestion
     c) Water and salt d) Water and alcohols
362. Which one of the following sequence is in correct order?
     a) Descending portal colon → Rectum → Anus b) Colon → Anus → Rectum
     c) Stomach → Jejunum → Duodenum d) Ileum → Colon → Caecum

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363. Which enzyme is responsible for the digestion of milk in infants?
     a) Pepsin b) Trypsin
     c) Rennin d) Various proteolytic enzyme
364. Which one statement is incorrect regarding the process of digestion and absorption in humans?
     a) Small intestine is the major site for the absorption of all nutrients
     b) Around 40% of the total absorption of nutrients takes place in the proximal part of the small intestine
     c) Drugs, alcohols, little water and salt are absorbed in the stomach through the mucous membrane
     d) Large intestine is the site of absorption for water and products of bacterial digestion
365. Deficiency of which vitamin causes type 1 and type 2 diabetes?
     a) Vitamin-B b) Vitamin-A c) Vitamin-D d) Vitamin-K
366. Which of the following is a water soluble vitamin?
     a) Vitamin-A b) Vitamin-B c) Vitamin-D d) Vitamin-E
367. Which one of the following pairs of the kinds of cells and their secretion are correctly matches?
     a) Oxyntic cells – A secretion with pH
     Between 2.0 And 3.0
     b) Alpha cells of islets – Secretion that decreases
     blood sugar level
     of Langerhans
     c) Kupffer’s cells – A digestive enzyme that
     hydrolyses nucleic acids
     d) Sebaceous glands – A secretion that evaporates
     for cooling
368. Digestion is accomplished by
     a) Mechanical and chemical processes b) Chemical processes only
     c) Mechanical processes only d) None of the above
369. Argentaffin may arise in
     a) Pancreas b) Bile duct
     c) Gastro-intestinal tract d) None of these
370. Prolonged deficiency of thiamine in human diet may lead to
     a) Pellagra b) Beri-beri c) Anaemia d) Haemorrhage
372. Continued consumption of a diet rich in butter, red meat and eggs for a long period may lead to
     a) Vitamin-A toxicity b) Kidney stones
     c) Hypercholesterolemia d) Urine laden with ketone bodies

373. Which one is a disorder of overnutrition?
     a) Kidney and gall bladder stone b) Scurvy and osteomalacia
     c) Hypercholesterolemia and fluorosis d) Vitamin-A toxicity and urine laden with ketone
     bodies
374. The epithelial cells lining the stomach of vertebrates is protected from damage by HCl because
     a) Hydrochloric acid is too dilute b) The epithelial cells are resistant to the action of
     HCl
     c) HCl is neutralized by alkaline gastric juice d) The epithelial cells are covered with a mucous
     secretion
375. In rabbit, the digestion of cellulose takes place in
     a) Colon b) Ileum c) Caecum d) Secretin
376. Read carefully the following statements regarding the absorption of nutrients. Find the incorrect
     statements and choose the correct option from the given below codes
     I. Absorption of carbohydrates takes place in the stomach and jejunum part of intestine
     II. The water soluble end products of food can reach the blood and lymph directly
     III. Large intestine and buccal cavity do not functions as the site of absorption
     IV. Large intestine is the site of absorption of about 90% of the total water present in the hydrolysed food
     Codes
     a) I, III and IV are incorrect b) I, II and IV are incorrect
     c) I and II are incorrect d) III and IV are incorrect
377. Which of the following is correct chronological order for enzyme activity of some enzymes taking part in
     protein digestion?
     a) Pepsin → Trypsin → Peptidase b) Pepsin → Peptidase→ Trypsin
     c) Trypsin → Pepsin→ Peptidase d) Peptidase→ Trypsin→ Pepsin
378. Vitamin-C is present as
     a) Oxalic acid b) Glutamic acid c) Ascorbic acid d) Citric acid
379. Deficiency of which vitamin, causes loss of appetite, mental confusion, fatigue and muscle depreciation?
     a) Vitamin-K b) Vitamin-C c) Thiamine d) Riboflavin
380. Treatment with alloxan destroys
     a) STH cells b) Alpha cells of islets of Langerhans
     c) Beta cells of islets of Langerhans d) Cells of Leydig
381. Which one is not true about vitamins?
     a) Vitamins are organic catalysts b) Vitamins are indispensable for life
     c) Vitamins act as a source of energy d) Tocopherol is anti-sterility vitamin
382. Enzyme present in saliva is
     a) Maltase b) Ptyalin c) Sucrase d) Invertase
383. Which of the following is true for vitamin-C?
     a) Also called as ascorbic acid b) Also called as fumaric acid
     c) Obtained from citrus fruits d) Both (a) and (c)
384. The back flow of faecal matter in the large intestine is prevented by the presence of
     a) Epiglottis
     b) Sphincter of Oddi
     c) Ileo-caecal valve
     d) Pyloric sphincter
385. Elephant tusks are
     a) Molars b) Canines c) Incisors d) Premolars
386. Which of the following best describes the process of nutrition?
     a) A process to obtain necessary energy and growth substances
     b) A process to obtain energy from foods
     c) A process to supply the necessary nutritive elements to body

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d) A sum total of processes which provides the necessary nutritive element for growth, maintenance and
to meet the need of energy

387. Name the process by which swallowed food is conveyed to pharynx and oesophagus respectively
     a) Deglutition b) Peristalsis c) Ingestion d) Succus entricus
388. The vitamin, synthesized by bacteria is
     a) B b) D c) K d) E
389. Label the given diagram of transverse section of mucosa of small intestine showing small finger like
     projections. Choose the correct option accordingly a) A-Vein, B-Crypt, C-Artery, D-Villi, E-Lacteal, F-Capillaries
     b) A-Artery, B-Crypt, C-Vein, D-Villi, E-Capillaries, F-Lacteal
     c) A-Vein, B-Artery, C-Crypt, D-Villi, E-Capillaries, F-Lacteal
     d) A-Villi, B-Lacteal, C-Capillaries, D-Artery, E-Crypt, F-Vein
390. Which of the following molecule can be digested by pancreatic juices?
     a) Fat, protein and nucleic acids b) Carbohydrates and proteins
     c) Carbohydrates and fats d) All of the above

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NEET BIOLOGY
DIGESTION AND ABSORPTION

: ANSWER KEY :
1) a 2) b 3) a 4) c
5) d 6) a 7) b 8) d
9) d 10) d 11) b 12) c
13) b 14) a 15) b 16) a
17) d 18) b 19) d 20) c
21) a 22) a 23) b 24) c
25) c 26) a 27) d 28) b
29) b 30) b 31) a 32) a
33) c 34) a 35) b 36) a
37) a 38) b 39) c 40) b
41) c 42) a 43) a 44) d
45) a 46) d 47) a 48) d

49) a 50) a 51) c 52) a
53) a 54) c 55) c 56) d
57) b 58) c 59) d 60) b
61) d 62) b 63) d 64) a
65) d 66) c 67) a 68) d
69) c 70) c 71) a 72) c
73) d 74) d 75) c 76) a
77) b 78) c 79) c 80) d
81) a 82) c 83) c 84) d
85) d 86) c 87) b 88) c
89) d 90) b 91) c 92) a
93) c 94) a 95) b 96) c
97) a 98) a 99) a 100) d
101) b 102) b 103) c 104) d
105) b 106) c 107) a 108) d
109) a 110) d 111) a 112) c
113) b 114) a 115) d 116) c
117) d 118) a 119) a 120) b
121) b 122) c 123) c 124) a

125) c 126) d 127) a 128) c
129) c 130) a 131) d 132) d
133) a 134) d 135) b 136) b
137) a 138) d 139) b 140) c
141) d 142) c 143) c 144) d
145) a 146) a 147) c 148) b
149) b 150) b 151) c 152) d
153) b 154) d 155) d 156) c
157) c 158) b 159) a 160) a
161) c 162) b 163) d 164) b
165) c 166) c 167) d 168) c
169) a 170) d 171) d 172) a
173) a 174) c 175) a 176) b
177) b 178) a 179) d 180) a
181) b 182) b 183) a 184) c
185) b 186) c 187) b 188) d
189) c 190) c 191) a 192) c
193) a 194) c 195) b 196) d

197) d 198) b 199) d 200) d
201) d 202) b 203) b 204) a
205) b 206) c 207) a 208) b
209) d 210) c 211) d 212) b
213) b 214) a 215) a 216) a
217) a 218) b 219) a 220) d
221) c 222) c 223) a 224) c
225) b 226) a 227) a 228) c
229) a 230) c 231) a 232) a
233) b 234) a 235) a 236) c
237) c 238) b 239) c 240) a
241) c 242) c 243) a 244) c
245) b 246) d 247) d 248) c
249) b 250) d 251) a 252) c
253) c 254) a 255) c 256) d
257) a 258) d 259) b 260) c

261) b 262) b 263) a 264) b
265) d 266) d 267) a 268) d
269) b 270) a 271) a 272) c
273) b 274) c 275) c 276) a
277) a 278) b 279) c 280) b
281) a 282) a 283) d 284) a
285) c 286) b 287) b 288) b
289) b 290) d 291) a 292) c
293) c 294) d 295) d 296) a
297) a 298) a 299) a 300) c
301) a 302) b 303) c 304) a
305) d 306) d 307) d 308) c
309) b 310) c 311) b 312) c
313) d 314) d 315) a 316) d
317) a 318) c 319) d 320) a
321) a 322) c 323) a 324) a
325) a 326) a 327) d 328) b

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329) a 330) a 331) a 332) c
333) c 334) a 335) d 336) b
337) b 338) a 339) a 340) b
341) a 342) a 343) a 344) a
345) a 346) c 347) b 348) c
349) a 350) a 351) c 352) a
353) c 354) b 355) b 356) c
357) d 358) c 359) b 360) a
361) b 362) a 363) c 364) b
365) c 366) b 367) a 368) a
369) c 370) b 371) c 372) c
373) c 374) d 375) c 376) d
377) d 378) c 379) c 380) c
381) c 382) b 383) d 384) d
385) c 386) d 387) d 388) c
389) a 390) d

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