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NEET Biology MCQ
Biological Classification Monera Protista Fungi Slime Moulds Viruses MCQ
Quiz 7
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Q.1
What is true for slime moulds?
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a) Parasitic, plasmodium with true wall, spores are dispersed by air currents.
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b) Saprophytic, plasmodium without walls, spores dispersed by water.
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c) Saprophytic, plasmodium without walls, spores dispersed by air currents.
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d) Parasitic, plasmodium without true walls, spores dispersed by water currents.
Explanation
Answer:(c)
Q.2
Fungi are always:
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a) Heterotrophs.
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b) Saprophytes.
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c) Parasites
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d) Autotrophs.
Explanation
Answer:(a)
Q.3
Viroids differ from viruses in:
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a) Satellite RNA packed with viral genome
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b) Naked DNA molecules.
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c) Naked RNA molecules only.
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d) Naked DNA packaged with viral genome.
Explanation
Answer:(c)
Q.4
Which of the following cannot be grown on artificial culture medium?
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a) E.coli.
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b) TMV
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c) Aspergillus
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d) Saccharomyces.
Explanation
Answer:(b)
Q.5
Lichens are described as best indicators of:
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a) Soil pollution.
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b) Air pollution.
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c) Water pollution
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d) Agricultural productivity.
Explanation
Answer:(b)
Q.6
Peptidoglycan is characteristic constituent of cell wall in:
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a) Archaebacteria and Eukaryotes.
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b) Eubacteria and unicellular eukaryotes
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c) Bacteria and cyanobacteria
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d) Monera and protista.
Explanation
Answer:(c)
Q.7
Presence of two nuclei, micronucleus and macronucleus, is a characteristic of protistan group:
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a) Sporozoans.
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b) Ciliata.
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c) Flagellata
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d) Sarcodina.
Explanation
Answer:(b)
Q.8
Protistan protozoans having nuclear dimorphism is:
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a) Amoeba proteus.
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b) Paramoecium caudatum.
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c) Plasmodium vivax.
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d) Trypanosoma gambiense.
Explanation
Answer:(b)
Q.9
Virus are no more ‘alive’ as isolated chromosomes because:
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a) They require both RNA and DNA.
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b) They both need food molecules.
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c) They both require oxygen for respiration.
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d) Both require the environment of a cell to replicate
Explanation
Answer:(d)
Q.10
Which of the following is wrongly matched:
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a) T.O. Diener – Viroids are found to be free DNA.
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b) W.M Stanley – Crystallised proteins.
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c) M.W Beijerinek – Contagium Vivum fluidum.
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d) D.J. Ivanowsky – Microbes smaller than bacteria cause mosaic disease of tobacco.
Explanation
Answer:(a)
Q.11
Which is correct about cell wall of bacteria and fungi?
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a) Both have glycopeptides.
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b) Both have N-acetyl glucosamine.
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c) Both have N-acetyl glucosamine and cellulose.
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d) Both have chitin.
Explanation
Answer:(b)
Q.12
Morels and truffles are group of fungi classified under:
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a) Phycomycetes.
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b) Deuteromycetes.
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c) Basidiomycetes.
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d) Ascomycetes.
Explanation
Answer:(d)
Q.13
Which one of the following would appear as the pioneer organisms on bare rocks?
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a) Mosses.
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b) Green algae.
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c) Lichens
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d) Liverworts.
Explanation
Answer:(c)
Q.14
Peptidoglycan is not found in the cell wall of:
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a) Cyanobacteria.
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b) Eubacteria.
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c) Archaebacteria.
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d) Both (B) and (C).
Explanation
Answer:(c)
Q.15
Photosynthetic blue green algae is:
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a) Oxygenic.
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b) Anoxygenic.
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c) Both oxygenic and anoxygenic.
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d) None of these.
Explanation
Answer:(a)
Q.16
Conjugation was first discovered in:
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a) Salmonella.
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b) Streptococcus.
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c) Bacillus subtilis.
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d) E.coli.
Explanation
Answer:(d)
Q.17
Oils and leucosin are characteristic stored food in:
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a) Dinoflagellates.
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b) Euglenoids.
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c) Diatoms.
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d) Slime mould.
Explanation
Answer:(c)
Q.18
Auxospores are formed by:
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a) Diatoms.
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b) Euglenoids.
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c) Dinoflagellates.
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d) Slime mould.
Explanation
Answer:(a)
Q.19
Identify the most appropriate difference in Puccinia from Claviceps.
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a) Parasitic on plants.
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b) Does not produce any asexual spores.
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c) Completing life cycle only in one host.
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d) Vegetative reproduction absent.
Explanation
Answer:(b)
Q.20
Assertion: In ascomycetes and Basidiomycetes well distinct dikaryotic phase present during sexual life. Reason: During sexual reproduction of ascomycetes and Basidiomycetes plasmogamy is immediately followed by Karyogamy.
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a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
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b) Both Assertion and Reason are true but Reason is NOT the correct explanation of Assertion.
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c) Assertion is true but Reason is false.
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d) Both Assertion and Reason are false.
Explanation
Answer:(c)
Q.21
In Euglenoids, stored food is Paramylon which is a:
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a) Conversion product of acids.
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b) Conversion product of starch.
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c) A type of lipid.
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d) A type of protein.
Explanation
Answer:(b)
Q.22
Multinucleated Acellular slime moulds are:
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a) Haploid.
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b) Diploid.
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c) Tetraploid.
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d) Polyploid.
Explanation
Answer:(b)
Q.23
Which of the following eukaryotes are devoid of histone proteins?
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a) Golden algae.
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b) Euglenoids.
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c) Fire algae.
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d) Slime mould.
Explanation
Answer:(c)
Q.24
A fungus completing its life cycle on a single host is known as:
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a) Homothallic.
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b) Autoecious.
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c) Heterocious.
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d) Heterothallic.
Explanation
Answer:(b)
Q.25
A lichen having much branched system of cylindrical or ribbon like branches but a small thallus is called as:
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a) Foliose lichen.
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b) Fruticose lichen.
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c) Crustose lichen.
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d) None of these.
Explanation
Fruticose lichen ususally round in cross secetion (terete), and most are branched. They can be like little shrubs growing upward, or they can hang down in long strands. The fruticose lichens have much branched cylindrical, ribbon-like, flattened or sometimes filamentous thalli. Answer:(a)
Q.26
In fungi, mycelium breaks into fragments of hyphae and each broken fragment give rise to a new mycelium. Which of the following explains this process?
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a) Fragmentation.
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b) Budding.
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c) Plasmogamy.
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d) Karyogamy.
Explanation
Answer:(a)
Q.27
Stored food in fungi:
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a) Fat.
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b) Proteins.
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c) Glycogen.
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d) Chitin.
Explanation
Answer:(c)
Q.28
Identify the following fungi which possess Septate and branched hyphae:
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a) Alternaria, Agaricus, Albugo.
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b) Rhizopus, Penicillium, Trichoderma.
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c) Ustilago, Colletotrichum, Mucor.
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d) Aspergillus, Puccinia, Lycoperdon
Explanation
Answer:(d)
Q.29
Herpes viruses and influenza viruses are respectively:
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a) ss DNA virus and ss RNA virus.
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b) ds DNA virus and ss DNA virus.
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c) ss RNA virus and ds DNA virus.
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d) ds RNA virus and ds DNA virus.
Explanation
Answer:(b)
Q.30
Find out the mis-matching series on the basis of mode of nutrition: (a) Plasmodium vivax, Penicillium, Slime mould, Anabaena. (b) Mycoplasma, Diatom, Saccharomyces, Mucor. (c) Bacteriophage, Albugo, Cuscuta, Trypanosoma. (d) Desmids, Nostoc, Chlorella, Anabaena.
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a) (a) and (b).
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b) (a) and (d).
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c) (b) and (c).
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d) (c) and (d).
Explanation
Answer:(a)
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