NEET MCQs Biological Classification – Free Pdf Download
- Osmoregulation in πππππππππ’π is a function of
a) Contractile vacuole b) Trichocysts c) Cytopyge d) Cytostome - Fungi imperfecti includes
a) Aspergillus and Penicillium b) Alternaria and Trichoderma
c) Ustilago and Puccinia d) Alternaria and penicillium - Which of the following is a non-hyphal unicellular fungus?
a) Yeast b) Puccinia c) Ustilago d) Alternaria - Auxospores and homocysts are formed, respectively by
a) Several diatoms and a few cyanobacteria b) Several cyanobacteria and several diatoms
c) Some diatoms several cyanobacteria d) Some cyanobacteria and many diatoms - HIV is classified as a retrovirus because its genetic information is carried in
a) DNA instead of RNA b) DNA c) RNA instead of DNA d) Protein coat - Consider the following statements
I. Mycelium is branched and septate
II. The asexual spores are generally not formed
III. Vegetative reproduction takes place by framentation
IV. Sex organs are absent but sexual reproduction takes place by somatogamy
V. Karyogamy and meiosis takes place in basidium to form haploid four basidiospores
Vi. Basidia are arranged in fruiting bodies called basidiocarp
The above statements are assigned to
a) Sac fungi b) Bracket fungi c) Imperfecti fungi d) Club fungi - Aristotle classified the plants on the basis of their morphological characters and categorised them into
a) Tree, shrubs and herbs
b) Algae, bryophytes, pteridophytes, gymnosperms and angiosperms
c) Embryophytes and tracheophytes
d) Algae and embryophytes - Citrus canker is a
a) Viral disease b) Bacterial disease c) Fungal disease d) Protozoan disease - Which is correct?
a) RNA is genetic material of bacteria b) RNA is genetic material of all virus
c) DNA is genetic material of some organism d) Some virus has RNA as genetic material - African sleeping sickness is caused by
a) πππ¦πππππ πππ b) πΏπππ βπππππ c) πΏππ‘ππππππ d) ππππ ππππ’π - Read the following statement about bacteria and select the correct option
a) Bacteria are simple in structure but complex in
behavior
b) Bacteria are complex in structure but simple in
behavior
c) Bacteria are simple in both structure and behavior d) Bacteria are complex in both structure and
behavior - Which of the following is a Gram negative bacterium?
a) πΈπ πβππππβππ ππππ b) π΅ππππππ’π π π’ππ‘πππππ
c) ππ‘ππππ‘πππ¦πππ ππππππππππ d) π΄πππ¦πππππ‘πππ ππ ππππππ‘ππππ
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13.Virus consists of
a) Nucleic acid b) Protein c) Both (A) and (B) d) None of these
- Parasitic and saprophytic conditions are more familiar in
a) Fungi b) Bacteria c) Algae d) Ferns - Bacteriophage releases lysozyme during
a) Penetration phase b) Eclipse phase c) Absorption phase d) Maturation phase - πΆπππππππ πππππππππππ is a/an
a) Algae b) Lichen c) Fungus d) Angiosperm - According to five kingdom classification bacteria belong to
a) Protista b) Monera c) Plantae d) Archaea - Which of the following is a free living nitrogen fixing bacterium present in the soil?
a) πππ‘πππ ππππππ b) π βππ§ππππ’π c) π΄π§ππ‘πππππ‘ππ d) ππ ππ’πππππππ - The genetic material of rabies virus is
a) Double stranded RNA b) Single stranded RNA c) Double stranded DNA d) Single stranded DNA - All of the following fungi belongs to Phycomycetes, except
a) Rhizopus b) Mucor c) Albugo d) Agaricus - Which is correct for bacteria?
a) They have both cyclic and non-cyclic photophosphorylation
b) They absorb light > 900 nm of wavelength
c) They release O2 during photosynthesis
d) They use H2O during photosynthesis - Consider the following statements
I. In this group, the ππππ πππππ’π differentiates and forms fruiting bodies, bearing spores at their tips
II. Spores possess true walls
III. The spores are dispersed by air currents
IV. The spores are extremely resistant and survive for many years even under adverse conditions
The above statements are assigned to
a) Euglenoid b) Slime moulds c) Dinoflagellates d) Chrysophytes - Purified antibiotic penicillin of ππππππππππ’π πππ‘ππ‘π’π was discovered by
a) Alexander Fleming b) Howard Floxy c) Robert Hooke d) Carolus Linnaeus - πβπππππππππ’π ,πππ‘βππππππππ’π and πππ‘βπππππππ‘ππππ’π are
a) Archaebacteria having eukaryotic histone homologue
b) Bacteria with cytoskeleton
c) Archaebacteria with negatively supercoiled DNA as eukaryotes but lacking histones
d) Bacteria having positively coiled DNA, cytoskeleton, mitochondria - Identify the correct pair of events when temperate phages infect bacteria.
I. No prophages are formed
II. Bacterial cell undergoes many divisions.
III. Bacterial cell undergoes immediate lysis.
IV. Prophages are formed
The correct pair is
a) I and II b) II and III c) III and IV d) II and IV - Which of the following is an edible fungi?
a) Mucor b) Penicillium c) Agaricus d) Rhizopus - Animal cells do not have
a) Plasma membrane b) Cell wall c) Chloroplast only d) Both (a) and (c) - Which group of organisms is represented by the given figure? a) Dinoflagellates b) Protozoans c) Slime mould d) Euglenoids
Page 3 | NEET BIOLOGY| BIOLOGICAL CLASSIFICATION
- State whether the given statements are true or false
I. Five kingdom system of classification did not differentiated between the heterotrophic group, fungi and
the autotrophic green plants, through they showed a characteristic difference in their walls composition.
II. Fungi wall contains chitin, while the green plants has a cellulosic cell wall
Codes
a) I is true, but II is false b) I is false, but II is true
c) I and II are true d) I and II are false - Under favourable conditions slime moulds form
a) Protonema b) Plasmodium c) Mycelium d) Fruiting bodies - Which of the following class of fungi helps in mineral cycling?
a) Deuteromycetes b) Basidiomycetes
c) Ascomycetes d) Phycomycetes - Teichoic acid is present in
a) Cell wall of Gram positive bacteria b) Cell wall of Gram negative bacteria
c) Capsid of virus d) Protoplasm of mycoplasma - Red tide in warms coastal water is caused due to the rapid multiplications of
a) Euglena b) Diatoms c) Gonyaulax d) Paramecium - Which of the following groups are placed under the kingdom-Protista?
a) Crysophytes b) Dianoflagellate and euglenoids
c) Slime moulds and protozoans d) All of the above - Which of the following statements is correct with respect to πΆπππππ‘ππ‘πππβπ’π ππππππ‘π’π?
a) The conidia and conidiophores are aseptate mycelium and setae are septate
b) The conidia, conidiophores, mycelium and setae are septate
c) The conidia are aseptate conidiophores, mycelium and setae septate
d) The mycelium is septate conidia, conidiophores and setae are aseptate - Ainsworth put π
βππ§πππ’π in
a) Zygomycotina b) Mastigomycotina c) Myxomycotina d) Ascomycotina - The disease caused by virus which is 42 nm in size and contains double stranded DNA is
a) Hepatitis-A b) AIDS c) Hepatitis-B d) Leprosy - The disease caused by πππ¦πππππ πππ is
a) Yellow fever b) Sleeping sickness c) Kala azar d) Hey fever - In which animal, dimorphic nucleus us found?
a) π΄πππππ b) πππ¦πππππ πππ ππππππππ π
c) ππππ πππππ’π π£ππ£ππ₯ d) πππππππππ’π πππ’πππ‘π’π - Kingdom-Monera consists of
a) Unicellular eukaryotes b) Multicellular eukaryotes
c) Bacteria d) Both (a) and (c) - Slimy mass of protoplasm with many nuclei and an π΄πππππβlike thalloid body is a characteristic feature
of
a) Ascomycetes b) Actinomycetes c) Phycomycetes d) Myxomycetes - The bacteria that can reside in extreme salty areas are called as
a) Halophiles b) Methanogens c) Basophiles d) Thermoacidophiles - In which of the following patterns of viral replication, viruses enter a cell, replicate and then cause the cell
to burst, releasing new viruses?
a) Lytic b) Lysogenic c) Repreogenic d) Both (a) and (b) - Potato leaf roll or leaf curl of papaya are caused by
a) Fungi b) Viruses c) Bacteria d) Nematodes
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45.The given statements describes a group of organism
I. Instead of a cell wall, they have a protein rich layer called pellicle which makes their body flexible
II. They have two flagella a short and a long one
III. They are photosynthetic in the presence of sunlight, when deprived of sunlight they behave like
heterotrophs by predating on other smaller organism
Which of the following group is referred here?
a) Slime moulds b) Dinoflagellates c) Euglenoids d) Protozoans
- In the light of recent classification of living organisms into three domains of life (bacteria, archaea and
eukarya), which one of the following statement is true about archaea?
a) Archaea resemble eukarya in all respects
b) Archaea have some noble features that are absent in other prokaryotes and eukaryotes
c) Archaea completely differ from both prokaryotes and eukaryotes
d) Archaea completely differ from prokaryotes - The sexual stages of pathogens of blast of rice and red rot of sugarcane are named respectively as
a) πππππππππ‘βπ ππππ ππ and πΆπππππ‘ππ‘πππβπ’π ππππππ‘π’π
b) πΆπππππ‘ππ‘πππβπ’π ππππππ‘π’π and ππ¦ππππ’πππππ πππ¦π§ππ
c) πΊπππππππππ π‘π’πππππππ ππ and πππππππππ‘βπ ππππ ππ
d) πππππππππ‘βπ ππππ ππ and πΊπππππππππ π‘π’πππππππ ππ - Substances secreted by bacteria are
a) Proteins b) Toxins c) Interferons d) Antibiotics - Which of the following statement is correct?
a) Viruses are obligate parasites b) All fungi are pathogenic
c) All algae are eukaryotes d) Bacteria are always harmful to mankind - In five kingdom system of classification of R H Whittaker, how many kingdoms contain eukaryotes?
a) Four Kingdoms b) One Kingdom c) Two Kingdoms d) Three Kingdoms - πΆπππ‘ππππ’π π£ππ£π’π πππ’πππ’π concept of virus was proposed by
a) DJ lvanowsky b) MW Beijerinck c) Stanley d) Robert Hooke - Heterothallism was discovered by
a) Blakeslee b) Bessey c) Butler d) A Flemming - A place was rocky and barren but now there is a green forest, the sequence of origin is
a) Lichen, moss, herbs, shrubs b) Moss, lichen, herbs, shrubs
c) Lichen, moss, shrubs, herbs d) Shrubs, herbs, moss, lichen - The asexual spores formed by πΆπππππ‘ππ‘πππβπ’π ππππππ‘π’π,ππβπππππ‘βπππ and π
βππ§πππ’π π π‘ππππππππ are
a) Many called b) One called c) Pyriform in shape d) Rod shaped - Read the following statements regarding archaebacteria and select the correct option
I. Archaebacteria differs from other bacteria in having different cell wall structure
II. Their cell wall is made up of cellulose and contains high amount of unsaturated fatty acid, which is
responsible for their survival in extreme conditions
III. Thermoacidophiles have dual ability to tolerate high temperature as well as high acidity
a) I and II are true b) I and III are true c) II and III are true d) I, II and III are true - In addition to absence of chlorophyll, what is the other difference between fungi and higher plants?
a) Type of nutrition and composition of cell wall b) Cell type
c) Nucleus d) Reproduction - Identify from the following examples, a fungus, which is of medicinal importance
a) π΄ππππππ’π b) ππππβπππππ¦πππ c) ππππππππππ’π d) πΆπππππ ππππ - Which one of the following pathogens causes citrus canker disease?
a) πππππππππ¦ππ ππππππππ‘π b) π΄πππ’πππ π‘πππ‘πππ
c) ππππ‘βππππππ πππ‘ππ d) ππ ππ’πππππππ ππ’πππππππππ - Kingdom-Protista includes
a) Life cycle showing sporic meiosis b) Life cycle showing zygotic meiosis
c) Life cycle showing gametic meiosis d) Both (b) and (c) - What is common about πππ¦πππππ πππ,ππππ‘πππ’ππ ππππππ¦π π‘ππ and πΊππππππ?
a) These are all unicellular protists b) They have flagella
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c) They produce spores d) These are all parasites
- Analyse the following statements and identify the correct options given below
I. Two kingdom system of classification did not distinguish between the eukaryotes and prokaryotes,
unicellular and multicellular organism and green algae and fungi.
II. The two kingdom classification used for a long time was found inadequate
a) I is true, but II is false b) I is false, II is true c) I and II are true d) I and II are false - Slime moulds in the division-Myxomycota (true slime moulds) have
a) Pseudoplasmodia
b) Spores that develop into free living amoeboid cells
c) Spores that develop into flagellated warm cells
d) Feeding stages consisting of solitary individual cells - The protein coat of a virus/is known as
a) Nucleoid b) Capsid c) Capsomere d) Outer envelope - In π΄πππππ, which controls the cytoplasmic osmality?
a) Nucleus b) Ectoplasm c) Biurets d) Contractile vacuole - The fungus without mycelium is
a) ππ’ππππππ b) πβπ¦π‘ππβπ‘βπππ c) π βππ§πππ’π d) ππππβπππππ¦πππ - Viroids have
a) ssRNA not enclosed by protein coat b) ssDNA not enclosed by protein coat
c) dsDNA enclosed by protein coat d) dsRNA enclosed by protein coat - Which one of the following organisms is scientifically incorrectly named and incorrectly described
a) Plasmodium falciparum-A protozoan pathogen causing the most serious type of malaria
b) Trypanosoma gambiense-The parasite of sleeping sickness
c) Diatoms-Very good pollution indicators
d) Noctiluca-A Chrysophyte, which shows bioluminescence - Which one of following has haplontic life cycle?
a) πΉπ’πππππ b) ππππ¦π‘πππβπ’π c) ππ π‘πππππ d) Wheat - Analyse the following statements about class-Ascomycetes
I. Mycelium is branched and septate
II. The asexual spores are conidia, produced on the special mycelium called conidiophores
III. Sexual spores are called ascospores which are produced in sac like asci. These asci are arranged in
same types of fruiting bodies called ascocarps
Which of the statements given above are correct
a) I and II b) I and III c) II and III d) I, II and III - Which of the given statement best describes the gametophytic in the alternation of generation life cycle?
a) Generation that produces the gametes b) Generation that produces the spores
c) Generation that has xylem and phloem d) The diploid generation - Which of the following does not belong to the kingdom-Protista?
a) Chrysophytes b) Euglenoids c) Ascomycetes d) Dinoflagellates - Microphagial nutrition occurs in
a) π΄ππβπππ₯π’π b) Insects c) πππππππππ’π d) π»π¦πππ - Which of the following organisms completely lack cell wall, they are the smallest living cells known and
can survive without oxygen?
a) Mycoplasma b) Euglenoids c) Slime moulds d) All of these - Bacteriophage are
a) Bacteria that attacks viruses b) Viruses that attacks bacteria
c) Free living viruses d) Free living bacteria - Which of the following is not a character of Protista?
a) Protists are prokaryotic
b) Some protists have cell walls
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c) Mode of nutrition is both autotrophic and heterotrophic
d) Body organization is cellular
- Which one of the following is a matching pair of certain organism (s) and the kind of association?
a) Shark and sucker fish β Commensalism
b) Algae and fungi in lichens β Mutualism
c) Orchids growing of trees β Parasitism
d) πΆπ’π ππ’π‘π (dodder) growing β Epiphytism
On other flowering plants - A bacterium divides after every 35 min, if a culture containing 105 cells per mL is grown, then cell
concentration per mL after 175 min will be
a) 175Γ105 b) 125Γ105 c) 48Γ105 d) 32Γ105 - The fungal partner in lichen is called mycobiont whereas algal partner is called
a) Glycobiont b) Algobiont
c) Phycobiont d) Often referred as algal partner - In the table below, some of the crop plants, their diseases and the pathogens are given. Match the three
columns and identify the correct choice.
Crop Disease Pathogen
A. Pigeon
pea
I. Root knot 1.
οΏ½
οΏ½π ππ’πππππππ
B. Brinjal II. Ear cockle 2.
οΏ½
οΏ½π’π ππππ’π
C.
Sugarcan
e
III. Wilt 3.
οΏ½
οΏ½πππ’ππππ
D. Wheat IV. Red stripe 4.
οΏ½
οΏ½ππππππππ¦ππ a) A-III-2 B-I-4 C-IV-1 D-II-3
b) A-I-2 B-III-4 C-II-3 D-IV-3
c) A-IV-3 B-I-2 C-III-1 D-II-3
d) A-II-1 B-IV-3 C-I-2 D-III-4 - In Basidiomycetes, the vegetative reproduction takes place by
a) Endospore b) Conidia c) Akinetes d) Fragmentation - Mention the βIncubation Periodβ of ππππ πππππ’π π£ππ£ππ₯.
a) 10-14 days b) 20-25 days c) 30 days d) 45 days - The plant cell have an eukaryotic structure with prominent β¦Aβ¦ and cell wall is made up of β¦Bβ¦. Identify
the correct options for A and B to complete the given statement
a) A-chloroplast; B-cellulose
b) A-nucleus; B-chitin
c) A-chloroplast; B-lignin
d) A-nucleus; B-polysaccharide - Fungi lack
a) Mitochondria b) Ribosomes
c) Chloroplast d) Endoplasmic reticulum - Which of the following statements are false about viruses?
I. Viruses are facultative parasites
II. Viruses can multiply only when they are inside the living cells
III. Viruses cannot pass bacterial proof filters
IV. Viruses do not contains proteins DNA and RNA
Code
a) I, II and III b) II, III and IV c) I, III and IV d) I, II, III and IV - During unfavorable conditions, π΄πππππ reproduces through
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a) Binary fission b) Sporulation c) Multiple fission d) Conjugation
- Lomasomes are found in
a) Algal cell b) Fungal cell c) Bacterial cell d) Cyanobacterial cell - The genetic material of viruses consists of
a) ds of ss DNA only b) ds or ss RNA only
c) DNA or RNA (both ds and ss) d) ssDNA or ssRNA and - Which one of the following is having ssRNA?
a) TMV b) T2βbacteriophage c) Reovirus d) CMV - F-factor in bacteria is
a) plasmid b) Episome c) Colicin factor d) None of these - Viruses have
a) Living characteristics b) Non-living characteristics
c) Both living and non-living characteristics d) Parasitic characteristics - If sexual reproduction takes place between the filament of π
βππ§πππ’π of different strains, one with 80
nuclei and another with 24 nuclei, what would be the total number of spores of different strains put
together?
a) 24 b) 48 c) 96 d) 114 - Which of the following kingdoms have no well defined boundaries?
a) Plantae b) Protista c) Monera d) Algae - In Deuteromycetes, the mycelium is
a) Septate and branched b) Septate and unbranched
c) Coenocytic d) Multinucleated - Consider the following statements
I. All prokaryotic organism were grouped together under kingdom-Monera
II. The unicellular eukaryotic organism were placed in kingdom-Protista
III. πΆβπππππππ and πΆβππππ¦πππππππ , both were having cell walls
IV. πππππππππ’π and π΄πππππ lack cell walls
V. Kingdom-Protista has brought together πΆβππππ¦ππππππ,πΆβπππππππ with πππππππππ’π and π΄πππππ
Which of the statements give above are correct?
a) I, II, III and IV b) II, III, IV and V c) I, II, III and IV d) I, II III, IV and V - Regarding sexual reproduction in fungi. Which of the following statement is correct?
a) Plasmogamy followed by karyogamy
b) Karyogamy followed by plasmogamy
c) Karyogamy and plasmogamy occur together
d) Sexual reproduction is absent in fungi - Which of the following bacteria plays a main role in recycling the nutrients like nitrogen, phosphorus, iron
and sulphur?
a) Chemoheterotrophic bacteria b) Chemosynthetic autotrophic bacteria
c) Parasitic bacteria d) Saprophytic bacteria - Bacteria differ from plants in that they do not have
a) DNA b) RNA
c) Cell wall d) A well define nucleus - Among rust, smut and mushroom, all the three
a) Are pathogens b) Are saprobes c) Bearascocarps d) Bear basidiocarps - All the given fungi belongs to Deuteromycetes, except
a) Alternaria b) Colletotrichum c) Trichoderma d) Ustilago - The body of a fungus is made up of a number of elongated, tubutar filaments called
a) Hyphae b) Woronin bodies c) Mycelium d) Thallus - All monerans
a) Contains DNA and RNA
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b) Demonstrate a long circular strand of DNA not found enclosed in a nuclear membrane
c) Are bacteria
d) All of the above
- Which of the following is not the locomotory organ of protozoa?
a) Cilia b) Flagella c) Parapodia d) Pseudopodia - Slime moulds are dependent on
a) Water plants b) Dead and decaying organic matter
c) Plants d) Weeds - Which of the following is a bacteriophage?
a) Bacteria infecting viruses b) Vibrio bacteria
c) Virus inhabiting in bacteria d) Cyanobacteria - Fungi show sexual reproduction by all of the following processes except
a) Oospores b) Ascospores c) Basidiospores d) Zoospores - Black rust of wheat is caused by a species of the genus
a) ππ’πππ b) π βππ§πππ’π c) π΄π ππππππππ’π d) ππ’ππππππ - Red tides in warm coastal water develops due to the presence of
a) Dinoflagellates b) Euglenoid farms c) Diatoms and desmids d) Slime moulds - Black rust of wheat is a fungal disease caused by
a) ππππππ ππππ ππππ‘ b) πΆπππ£πππππ ππ’πππ’πππ
c) π΄πππ’ππ πππππππ d) ππ’ππππππ ππππππππ π‘πππ‘πππ - Bacterium having flagella with all over body is known as
a) Peritrichous b) Amphitrichous c) Monotrichous d) None of these - In some fungi, two haploid cells results in diploid cells. In some cases, dikaryon stage occurs in which two
nuclei are present within a cell. This phase is known as
a) Monokaryophase b) Dikaryophase c) Plasmogamy d) karyogamy - Reproduction in most of the bacteria is by a process known as
a) Binary fission b) Budding c) Sexual d) Sporulation - What are episomes?
a) Hereditary DNA of bacterial cell
b) Extrachromosomal hereditary material of bacteria associated with nucleoid
c) Modification of the cell membrane performing respiration
d) None of the above - Identify the correct pair that shows the double stranded RNA among the following
a) Cauliflower mosaic virus and dahlia mosaic virus
b) Polio virus and wound tumour virus
c) Wound tumour virus and reovirus
d) Tobacoo mosaic virus and reovirus - All of the following statements concerning the actinomycetous filamentous soil bacterium πΉππππππ are
correct, except that πΉππππππ
a) Can induce root nodules on many plant species
b) Can fix nitrogen in the free-living state
c) Like π βππ§ππππ’π, it usually infects its host plant through root hair deformation and simulates cell
proliferation in the hostβs cortex
d) Forms specialized vesicles, in which the nitrogenase is protected from oxygen by a chemical barrier
involving triterpene hopanoids - Soft-rot disease of sweet potato is caused by
a) π βππ§πππ’π π π‘ππππππππ b) π βππ§πππ’π π ππ₯π’ππππ
c) πΆβππππ¦πππππππ πππ£ππππ d) πΆβππππ¦πππππππ πππππππππ - Chromosomes in a bacterial cell can be 1-3 in number and
a) Can be either circular or linear, but never both within the same cell
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b) Can be circular as well linear within the same cell
c) Are always circular
d) Are always linear
- The cells of the body of a multicellular fungus are organised into rapidly growing individual filament called
a) Mycelium b) Rhizoids c) Hyphae d) Fibrins - The non-living characteristic of viruses is
a) Ability to multiply only inside the host b) Ability to cause diseases in the host
c) Ability to undergo mutation d) Ability to be crystallize - Which of the following bacteria are responsible for the production of biogas from the dung of cows and
buffaloes?
a) Thermoacidophiles b) Halophiles
c) Methanogen d) Cyanobacteria - In π΄πππππ, the contractile vacuole is present
a) Near the trailing end b) Near the advancing end
c) At the middle of the body d) Anywhere inside the body - Which of the following environmental conditions are essential for optimum growth of ππ’πππ on a piece of
bread?
I. Temperature of about 25Β°C
II. Temperature of about 5Β°C
III. Relative humidity of about 5%
IV. Relative humidity of about 95%
V. A shady place
VI. A brightly illuminated place
a) I, III and V b) I, IV and V c) II, IV and V d) II, III and VI - Which one is the free-living, anaerobic nitrogen-fixer?
a) π΅πππππππππππ b) π βππππ πππππππ’π c) π βππ§ππππ’π d) π΄π§ππ‘πππππ‘ππ - Edible part of mushroom is
a) Basidiocarp b) Primary mycelium
c) Fungal hyphae d) Basidiospores - Which of the following is a symbiotic nitrogen fixer?
a) πΊππππ’π b) π΄π§ππ‘πππππ‘ππ c) πΉππππππ d) π΄π§ππππ - Viruses contain
a) Only RNA b) Only DNA c) Either DNA or RNA d) Neither DNA nor RNA - In the five kingdom classification, πΆβππππ¦πππππππ and πΆβπππππππ are included in
a) Plantae b) Algae c) Protista d) Monera - The accumulated food reserve in fungi is
a) Protein b) Starch c) Glycogen d) Fat - Yeast is not included in protozoans but in fungi because
a) It has no chlorophyll
b) Some fungal hyphae grow in such a way that they give the appearance of psuedomycelium
c) It has eukaryotic organisation
d) Cell wall is made up of cellulose and reserve food material as starch - The genetic material of AIDS virus is
a) Double stranded DNA b) Double stranded RNA c) Single stranded RNA d) Single stranded DNA - The benefit of algae in lichen is
a) Food for fungi b) Shelter
c) Mineral absorption d) Protection - Which of the following groups belongs to protozoans?
a) Amoeboid, flagellates, ciliates, sporozoans
b) Diatoms, amoeboid, ciliates, sporozoans
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c) Desmids, ciliates, flagellates, amoeboid
d) Dinoflagellates, ciliates, Plasmodium, amoeboid
- A virus differs from a bacterium as it contains
a) A cell wall b) Cytosol
c) DNA as genetic material d) DNA or RNA as genetic material with no
ribosomes - Viral genome incorporated into host DNA is called
a) Prophase b) Prophage c) Bacteriophage d) None of these - Maximum number of antibiotics are obtained from
a) Fungi b) Bacteria c) Virus d) Plants - Animals reserve food material in the form of
a) Glycogen or animal fat
b) Glucose
c) Cellulose
d) Chitin - Which of the following protects the bacteria from the enzymes present in the external medium?
a) Slime layer b) S-layer c) Flagella d) Cell wall - Concerning general characteristic of plants, which statement is correct
I. Some of these may be partially heterotrophic as in case of insectivorous plants line Venus fly trap
II. They have distinct nucleus, chloroplast and chitinous cell wall
a) Only I b) Only II c) I and II d) None of these - The smallest free-living organism is
a) Virus b) Mycoplasma c) Diatom d) Cyanobacterium - The symbiotic relationship between fungi and algae is called
a) Lichen b) Mycorrhiza c) Helotism d) Mutualism - A term βhelotismβ is used for the symbiosis of
a) Algae and fungi b) Algae and πΆπ¦πππ c) Algae and bacteria d) ππππ’π and fungi - Chitin is present in the cell wall of
a) Fungi b) Bacteria c) Yeast d) Algae - St. Anthonyβs fire disease is caused by
a) Bacteria b) Fungus c) Nematodes d) Polychaete - In ππππ πππππ’π, signet ring stage us formed during
a) Exo-erythrocytic schizogony b) Erythrocytic schizogony
c) Sporogony d) Gamogony - Common cold is a
a) Bacterial disease b) Viral disease c) Protozoan disease d) Fungal disease - Viroids were discovered by
a) TO Diener b) DJ Ivanowsky c) MW Beijerinck d) WM Stanley - Plants provide protection from fungal disease by producing
a) Protoxins b) Prolectins c) Phytoalexins d) All of these - Who crystallised and isolated viruses for the first time?
a) WM Stanley b) FC Bawden c) KM Smith d) DJ lvanowsky - Heating milk at 65Β°C followed by sudden cooling is known as
a) Sterilization b) Preservation c) Pasteurization d) Fermentation - Select incorrect pair.
a) Porifera β choanocytes b) Coelenerata β eukaryote
c) Annelidaβ segmentation d) Monera β eukaryote - Who proposed five kingdom classification and named kingdoms as Monera, Protista, Fungi, Plantae and
Animalia?
a) Herbert Copeland b) R H Whittaker c) Carl Woese d) Carolus Linnaeus
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- Analyse the following statements regarding cyanobacteria and identify the correct option given below
I. The cyanobacteria are unicellular, colonial or filamentous, marine or terrestrial algae
II. The colonies of cyanobacteria are generally surrounded by gelatinous sheath
Codes
a) Only I b) Only II c) I and II d) None of these - Some bacteria utilises inorganic substances like nitrate, nitrite, ammonia, etc., for the oxidation and
release of energy for ATP production. These are known as
a) Cyanobacteria b) Chemosynthetic autotrophic bacteria
c) Heterotrophic bacteria d) Saprophytic bacteria - VAM is
a) Symbiotic bacteria b) Saprophytic bacteria
c) Saprophytic fungi d) Symbiotic fungi - Ascomycetes is commonly known as
a) Toad stool b) Sac fungi
c) Imperfect fungi d) Bracket fungi - Protozoans are
a) Heterotrophs b) Autotrophs c) Producer d) Saprophytes - The parthenospores of π
βππ§πππ’π are
a) Uninucleate b) Binucleate c) Trinucleate d) Multinucleate - Bacteria do not have
a) Ribosome b) Protein synthesizing apparatus
c) Mitochondria d) Cell wall - Viruses and viroids are the non-cellular organisms, which are not characterised in the classification of
a) Whittaker b) Aristotle c) Linnaeus d) Watson - Which of the following is correct matched?
a) Humus β Abiotic component b) π βππ§ππππ’π β Free-living nitrogen fixer
c) Phosphorus cycle β Sedimentary d) πβππππ ππππ’π π‘π β Tropical deciduous forest - Which of these best describes the saprophytic generation in plantβs life cycle?
a) The haploid generation b) Generation that produces the gametes
c) Generation that produces spores d) Generation that has xylem and phloem - The type of nutrition, where organisms engulf food materials, is?
a) Saprozoic b) Autotrophic c) Holozoic d) Saprophytic - Fruiting body of ππππππππππ’π is
a) Cleistothecium b) Pycniophysis c) Sterigmata d) None of these - Which statement is correct for bacterial transduction?
a) Transfer of some genes from one bacteria to another bacteria through virus
b) Transfer of genes from one bacteria to another bacteria by conjugation
c) Bacteria obtain DNA directly
d) Bacteria obtain DNA from other external source - Contractile vacuole is absent in
a) Sporozoa b) Sarcodina c) Zooflagellate d) Slime moulds - Mycorrhiza are mutualistic and have symbiotic associations between
a) Fungi and vascular plants
b) fungi and non-vascular plants
c) Fungi and roots of higher plants
d) Fungi and bryophytes - Lichen are mutualistic and have symbiotic associations between
a) Fungi and virus b) Fungi and algae
c) Fungi and root of higher plants d) Fungi and mosses - An eukaryote, which causes disease comes under
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a) Moneran b) Fungus c) Virus d) None of these
- Curing of tea is brought about by the activity of
a) Bacteria b) Mycorrhiza c) Viruses d) Fungi - The first attempt to classify organisms on scientific basis was done by
a) Copeland b) Aristotle c) Linnaeus d) Whittaker - Plants have a/anβ¦β¦ in their life cycle
a) Sexual phase only b) Asexual phase only
c) Alternation of generations d) Haplontic - Bacterial flagella is made up of
a) Protein b) Amines c) Lipids d) Carbohydrates - Consider the following statements and place them into true and false category
I. The fungi constitutes a unique kingdom of heterotrophic organisms
II. The common mushroom and toad stools are fungi
IIII. White spots seen on mustard leaves are due to presence of parasitic fungus
IV. Some unicellular fungi (ππ π‘πππππ) are used to make bread and beer
V. ππ’ππππππ ππππππππ π‘πππ‘πππ is responsible for yellow rust of wheat
VI. ππππππππππ’π yields the antibiotic penicillin
True False
a) I, II, III IV, V, VI b) I, II, III,VI IV, V
c) II, III, VI I, IV, V d) IV, V I, II, IIII, VI - There exists a close association between the alga and the fungus withina lichen. The fungus
a) Fixes the atmospheric nitrogen for the alga
b) Provides protection, anchorage and absorption for the alga
c) Provides food for the alga
d) Releases oxygen for the alga - Which is false for nutrition in π΄πππππ?
a) Omnivorous b) Pseudopodia feeder c) Holozoic nutrition d) Photoautotroph - Bacterial flagella do not show ATPase activity and 9+2 organization. These are chemically formed of
a) Flagellin b) Pilin c) Tubulin d) Bacterin - Viruses did not find a place in classification since
a) They are not truely living b) They are non-cellular
c) They are obligate parasite d) They are pathogenic - Certain bacteria living in the soil poor in oxygen, convert nitrates into nitrites and then to free nitrogen
and such bacteria are termed as
a) Nitrogen fixing bacteria b) Denitrifying bacteria
c) Ammonifying bacteria d) Saprophytic bacteria - All are the viral diseases except
a) AIDS and mumps b) Smallpox and herpes
c) Influenza d) Anthrax - β¦β¦ give the name virus, which means venom or poisonous fluid
Fill in the blank
a) Pasteur b) MW Beijerinck c) Stanley d) Robert Hook - Which is correct?
a) Slime moulds are haploid. b) Protozoans lack cell wall.
c) Dinoflagellates are immotile. d) Pellicle is absent in πΈπ’πππππ. - Which one of the following does not grow in artificial media?
a) TMV b) Bacteria c) Yeast d) π βππ§πππ’π - Silica gel is obtained by
a) Red algae b) Diatoms c) Euglena d) Mycoplasma - Which pair of the following belongs to Basidiomycetes?
a) Birds nest fungi and puffballs b) Puffballs and πΆπππ£πππππ
c) πππ§ππ§π and stink horns d) ππππβππππ and mushrooms
d) Endoplasm is converted into ectoplasm.
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