NEET Biology Biological Classification MCQs Set A

Question. Two kingdom system classification was given by
(a) Linnaeus
(b) John Ray
(c) Copeland
(d) Whittaker

Answer: A

Question. Which kingdom was introduced in 4 kingdom classification and who proposed it?
(a) Protista and Copeland
(b) Plantae and linnaeus
(c) Monera and Whittaker
(d) Monera and Copeland

Answer: D

Question. Which of the following is the major group in Monera?
(a) Eubacteria
(b) Cyanobacteria
(c) Archaebacteria
(d) All of these

Answer: A

Question. Term bacteria was given by
(a) Koch
(b) Pasteur
(c) Ehrenberg
(d) Stanley

Answer: C

Question. 70S ribosomes, chromatophores, circular DNA, mesosomes are found in
(a) All eukaryotes
(b) All prokaryotes
(c) Some prokaryotes
(d) Some eukaryotes and some prokaryotes

Answer: C

Question. A bacterium that bears flagella all over the surface is called
(a) Lophotrichous
(b) Cephalotrichous
(c) Peritrichous
(d) Amphitrichous

Answer: C

Question. A distinct lipo-polysaccharide layer is found in
(a) Gram (+) bacteria
(b) Gram (-) bacteria
(c) All bacteria
(d) Mycoplasma

Answer: B

Question. In bacteria, the respiratory enzymes are situated in the
(a) Cytoplasm
(b) Cell membrane
(c) Ribosomes
(d) Mitochondria

Answer: B

Question. Cell wall in Gram positive bacteria is composed of
(a) Lipid and protein
(b) Murein
(c) Proteins only
(d) Cellulose and pectin

Answer: B

Question. One of the following is a filamentous bacteria
(a) Pseudomonas
(b) Clostridium
(c) Actinomyces
(d) Azotobacter

Answer: C

Question. Pili represent
(a) Extra chromosomal genetic elements
(b) Protoplasmic outgrowths of donor cells
(c) Small flagella
(d) Special bacterial cilia

Answer: B

Question. Plasmids represent
(a) A group of monerans
(b) Small parasitic organisms
(c) Genetic elements
(d) Extra chromosomal genetic elements

Answer: D

Question. The resting spores produced by bacteria in unfavourable conditions are called
(a) Oidia
(b) Endospores
(c) Exospores
(d) Chlamydospores

Answer: B

Question. Conjugation in bacteria was discovered by
(a) Beadle and Tatum
(b) Zinder and Lederberg
(c) Griffith
(d) Lederberg and Tatum

Answer: C

Question. Genophore is the name of
(a) DNA of eukaryoles
(b) DNA of bacteria
(c) Genes of Drosophila
(d) Genes of Neurospora

Answer: B

Question. There is no alternation of generation in Escherichia coli because of the absence of
(a) Syngamy
(b) Reduction division
(c) Conjugation
(d) Both (a) & (b)

Answer: D

Question. The following bacterium is associated with denitrification
(a) Azotobacter
(b) Rhodospirillum
(c) Pseudomonas
(d) Rhizobium

Answer: C

Question. Bacteria which can survive in the absence of oxygen are known as
(a) Obligate anaerobes
(b) Facultative anaerobes
(c) Obligate aerobes
(d) Facultative aerobes

Answer: B

Question. Streptomycin is produced by
(a) Streptomyces venezuelae
(b) Streptomyces griseus
(c) Streptomyces arythreus
(d) Streptomyces aureofaciens

Answer: B

Question. Food poisoning is caused by
(a) Clostridium tetani
(b) Clostridium botulinum
(c) Salmonella typhi
(d) Mycobacterium tuberculosis

Answer: B

Question. Rhizobium is
(a) Symbiotic and Gram negative bacterium
(b) Symbiotic and Gram positive bacterium
(c) Free living nitrogen fixing bacterium
(d) Parasitic and nitrogen fixing bacteria

Answer: A

Question. Syphilis is caused by
(a) Neisseria gonorrhoeae
(b) Treponema pallidum
(c) Hemophilous pertusis
(d) Pasteurella pestis

Answer: B

Question. Jacob and Wollman coined the term
(a) Plasmid
(b) Episome
(c) Circular DNA
(d) Chromosome

Answer: B

Question. Branched chain lipids occur in the cell membranes of
(a) Archaebacteria
(b) Mycoplasma
(c) Actinomycetes
(d) Streptomyces

Answer: A

Question. Monerans producing conidia for reproduction belong to
(a) Eubacteria
(b) Archaebacteria
(c) Actinomycetes
(d) Mycoplasma

Answer: C

Question. Smallest known moneran lacking cell wall are
(a) Spirochaete
(b) Mycoplasma
(c) Cyanobacteria
(d) Archaebacteria

Answer: B

Question. Cyanobacteria do not possess
(a) Gene recombinations
(b) Flagella
(c) Plasmids
(d) Lamellasomes

Answer: B

Question. Heterocyst present in Nostoc is specialised for
(a) Fragmentation
(b) Nitrogen fixation
(c) Storage
(d) Photosynthesis

Answer: B

Question. 'Contagium vivum fluidium (i.e., living fluid infectant) term has been given by
(a) Mayer
(b) lvanowsky
(c) Beijerinck
(d) Bawden and Pirie

Answer: C

Question. Anaerobic monerans which are endosymbiotically associated with cattles rumen are
(a) Bacillus
(b) Methanobacterium
(c) Halococcus
(d) Thermoacidophiles

Answer: B

Question. Gange's water purity is maintained by
(a) Bdellovibrio
(b) Clostridium
(c) Ferrobaciflus
(d) Tolypothrix

Answer: A

Question. Bivalved siliceous shell or frustule occur in
(a) Diatoms
(c) Zooflagellates
(b) Radiolarians
(d) Archaebacteria

Answer: A

Question. Diatomaceous earth is due to
(a) Silicon
(b) Zinc
(c) Phosphorus
(d) Calcium

Answer: A

Question. Reserve food in Euglena is
(a) Paramylum
(b) Starch
(c) Glycogen
(d) Mannitol

Answer: A

Question. Special type of red pigment present in the eye-spot of Euglena and Crustacea is called
(a) Phycoerythrin
(b) Astaxanthin
(c) carotene
(d) Xanthphyll

Answer: B

Question. Mixotrophic nutrition occurs in
(a) Paramecium
(b) Euglena
(c) Plasmodium
(d) Amoeba

Answer: B

Question. The structure formed in the life cycle of cellular slime-mould due to chemotactic movement is
(a) Pseudoplasmodium
(b) Swarm cells
(c) Macrocyst
(d) Capillitia

Answer: A

Question. Myxamoeba are formed in the life cycle of
(a) Physarum
(c) Entamoeba
(b) Amoeba
(d) Diatoms

Answer: A

Question. De Bary considered slime moulds to be closely related to animals and called them
(a) Protozoa
(c) Mycetozoa
(b) Metazoa
(d) Mycotina

Answer: C

Question. De Bary was a leading
(a) Phycologist
(c) Bryologist
(b) Mycologist
(d) Pteridologist

Answer: B

Question. Asexual spores of fungi (thallophytes) are commonly known as
(a) Oospores
(b) Mitospores
(c) Meiospores
(d) Zygospores

Answer: B

Question. Oidia resemble yeasts in
(a) Fermentation
(b) Budding
(c) Unicellular nalure
(d) All of these

Answer: D

Question. Which one of the following shows haplodiplontic life cycle with four ascospores in the ascus?
(a) Budding yeast
(b) Fission yeast
(c) Helobial yeast
(d) False yeast

Answer: A

Question. Gametangial copulation (conjugation) is common in
(a) Ascomycetes
(b) Zygomycetes
(c) Basidiomycetes
(d) Deuleromyceles

Answer: B

Question. Molile sperms (or motile sperm cells) are absent in
(a) Rhizopus
(b) Funarla
(c) Fem
(d) Cycas

Answer: A

Question. If the thallus of an organism like a fungus is entirely converted into one or more reproductive structures it is called as
(a) Eucarpic
(b) Holocarpic
(c) Holozoic
(d) Hornothallic

Answer: B

Question. Subterranean masses of hyphae which pass the unfavourable periods in donnant stage are known as
(a) Sclerotia
(b) Mycelium
(c) Rhizomorph
(d) Puff balls

Answer: C

Question. Asexual reproduction by aplanospore formation is the feature of
(a) Sac fungi
(b) Fungi impertect
(c) Conjugating fungi
(d) Club fungi

Answer: C

Question. Haploid sexual spore produced exogenously is
(a) Ascospore
(b) Oospcre
(c) Basidiospore
(d) Zygospore

Answer: C

Question. White rust of crucifers is caused by
(a) Albugo candida
(b) Sclerospora
(c) Phytophthora infestans
(d) Pythium debaryanum

Answer: A

Question. Coenocytic mycelium occurs in
(a) Zygomycetes
(b) Phycomycetes
(c) Both (a) & (b)
(d) Deuteromycetes

Answer:  C

Question. Ascomycetes are known as
(a) Club fungi
(b) Sac fungi
(c) Fungi imperfecti
(d) Fission fungi

Answer: B

Question. One of the following is helobial yeast
(a) Saccharomyces
(b) Schizosaccharomyces
(c) Saccharomycokies
(d) Schizomycetes

Answer: C

Question. One of the following is a true yeast
(a) Canedida
(b) Myoodenna
(c) Cryptococcus
(d) Saccharomyces

Answer: D

Question. Fungi differs from bacteria in
(a) Mode of nutrition
(b) Having NAG in cell wall
(c) Flagella structure
(d) Reserve food material as glycogen

Answer: C

Question. Penicillin is obtained from
(a) Penicillium griseofulvum
(b) Penicillium chrysogenum
(c) Penicillium camemberti
(d) Penicillium roqueforti

Answer: B

Question. Branched conidiophores are found in
(a) Penicillium
(b) Rhizopus
(c) Uslifago
(d) Saccharomyces

Answer: A

Question. Fruiting body in Aspergillus (or Penicillium) is known as
(a) Cleistothecium
(b) Apothecium
(c) Perithecium
(d) Hysterothecium

Answer: A

Question. A mushroom having hallucinating properties similar to LS.D. is
(a) Morchella
(b) Psaliota
(c) Psilocybe
(d) Armillaria

Answer: C

Question. Powdery mildew of cereals is due to
(a) Puccinia graminis
(b) Claviceps purpurea
(c) Ustilago tritici
(d) Erysiphe graminicola

Answer: D

Question. Ergot is a product of
(a) Rhizopus
(b) Claviceps purpurea
(c) Aspergillus
(d) Sclerospora

Answer: B

Question. The famous Irish famine is related to a disease of potato known as
(a) Late blight of potato
(b) Early blight of potato
(c) Dry rot of potato
(d) Potato scab

Answer: A

Question. A fungus, which grows on rotting wood, is
(a) Rhizopus
(b) Pythium
(c) Peziza
(d) Aspergilfus

Answer: C

Question. A dolipore septum is a characteristic feature of
(a) Phycomycetes
(b) Ascomycetes
(c) Basidiomycetes
(d) Zygomycetes

Answer: C

Question. Fertile layer of gills is known as
(a) Hymenium
(b) Trama
(c) Paraphyses
(d) Basidia

Answer: A

Question. An edible part at mushroom is
(a) Primary mycelium
(b) Secondary mycelium
(c) Rhizomorph
(d) Basidiocarp

Answer: D

Question. Pioneer work on wheat rust was done by
(a) Mundkur
(b) Tutsane
(c) KG. Mehta
(d) Subramaniam

Answer: C

Question. The soredium is a reproductive structure of
(a) Ascomycetes
(b) Zygomycetes
(c) Basidiomycetes
(d) Lichens

Answer: D

Question. Symptom not seen in plants due to viruses is
(a) Mosaic formation
(b) Leaf rolling and curling
(c) Yellowing, vein clearing
(d) Root knot

Answer: D

Question. Viroids were discovered by
(a) Alper
(b) Randle
(c) Diener
(d) lvanowsky

Answer: C

Question. Five kingdom system of classification is mainly based on
(a) Complexity of cell structure
(b) Mode of nutrition
(c) Complexity of body organisation
(d) Ecological role

Answer: B

Question. Bacteria are considered primitive organisms because they
(a) Possess incipient nucleus
(b) Are small, microscopic plants, which are not seen by the naked eyes
(c) Cause serious diseases to human being, domesticated animals and crop plants
(d) Produce endospores which are very resistant to adverse conditions

Answer: A

Question. The part of the bacterial chromosome that is homologous to a genome fragment transferred from the donor to the recipient cell in the formation of a merozygote is known as
(a) Exogenote
(b) Endogenote
(c) Dysgenic
(d) Eugenic

Answer: B

Question. Broad spectrum antibiotic is that which
(a) Acts on both pathogens and hosts
(b) Acts on all bacteria and viruses
(c) Acts on a variety of pathogenic microorganisms
(d) Is effective in very small amounts

Answer: C

Question. A cyanelle is
(a) A BGA associated with human intestine
(b) A BGA associated with protists
(c) A free living BGA
(d) Any symbiotic BGA

Answer: B

Question. Bacterial cell divides every one minute. It takes 15 minutes a cup to be one-fourth full. How much time will it take to fill the cup?
(a) 30 minutes
(b) 45 minutes
(c) 60 minutes
(d) 17 minutes

Answer: D

Question. Highly resistance nature of endospore is due to the presence of
(a) Dipicolinic acid and peptidoglycan in spore coat
(b) Peptidoglycan in exosporium
(c) Dipicolinic acid and Ca in cortex
(d) Dipicolinic acid and Ca in cell membrane

Answer: C

Question. Find the correct match
Column I                   Column II
a. Streptomycin        (i) Streptomyces griseus
b. Terramycin           (ii) S. venezuelae
c. Chloramphenicol  (iii) S. rimosus
d. Bacitracin            (IV) Bacillus licheniformis
(a) a(i), b(iii), c(ii), d(iv)
(b) a(ii), b(i), c(iii), d(iv)
(c) a(iii), b(ii), c(i), d(iv)
(d) a(i), b(ii), c(iii), d(iv)

Answer: A

Question. The photosynthetic protists are
(a) Diatoms, euglenoids and slime moulds
(b) Sacrodines, dinoflagellates and diatoms
(c) Euglenoids, diatoms and dinoflagellates
(d) Ciliates, zooflagellates and dinoflagellates

Answer: C

Question. Sea water glows during night mainly due to occurrence of
(a) Gonyaulax
(b) Euglena
(c) Noctiluca
(d) Cyetoletta

Answer: B

Question. Rejuvenescent spore of diatom is
(a) Haploid and exospore
(b) Diploid and statospore
(c) Haploid and statospore
(d) Diploid and auxospore

Answer: D

Question. Leucosin (Chrysolaminarin) is a carbohydrate which is stored as reserve food in case of
(a) Diatom
(b) Euglena
(c) Dinoflagellates
(d) Paramecium

Answer: A

Question. Flagellation in Euglena is
(a) Uniflagellation and stichonematic
(b) Isakon! and whiplash type
(c) Heterokont and whiplash type
(d) Heterokont and stichonematic

Answer: D

Question. Paraflagellar body of Euglena helps in
(a) Locomotion
(b) Photoreception
(c) Reproduction
(d) Osmoregulation

Answer: B

Question. Difference between a red sea and red tide is
(a) Red tide takes place in red sea
(b) Associated with a cyanobacteria and protist respectively
(c) One is by virus and other by bacteria
(d) Associated with Rhodophyceae and diatoms respectively

Answer: B

Question. Find the correct match
Column I                     Column II
a. Gill fungi                    (i) Salmon disease
b. Cup fungi                  (ii) Trama
c. Black mould              (iii) Penicillin
d. Blue I green mould   (iv) Zygophore
(v) Apothecium
(a) a(ii), b(iii), c(i), d(v)
(b) a(ii), b(v), c(iv), d(i)
(c) a(ii), b(v), c(iv), d(iii)
(d) a(ii), b(iii), c(i), d(iv)

Answer: C

Question. Select incorrectly matched pair
(a) Mucor mucedo – Coprophilous
(b) Albugo candida – Facultative parasite
(c) Agaricus bisporus – Edible basidiocarp
(d) Puccinia graminis – Heteroecious fungi

Answer: B

Question. When two host species are required for completion of a parasitic fungus life cycle, this condition is described as
(a) Autoecious
(b) Heteroecious
(c) Autotrophic
(d) Heterokaryotic

Answer: B

Question. The most common chlorophycobiont in a lichen is
(a) Chlorella
(b) Trebouxia
(c) Gonium
(d) Chlamydomonas

Answer: B

Question. Viruses possess all the following properties, except
(a) They are non-cellular organisms
(b) Possess both DNA and RNA
(c) Capsid protects nucleic acid
(d) Have inert crystalline structure outside living cells

Answer: B

Question. Select correct match w.r.t. Whittaker' system of classification
(a) Monera : Unicellular and multicellular, osmotrophs, producers and decomposers, true cellulosic cell wall
(b) Protista : Unicellular, eukaryotic, photoautotrophs and chemoautolrophs
(c) Fungi : Multicellular/loose tissue , eukaryotic, osmotrophs, chitinous wall
(d) Animalia : Multicellular, eukaryotic, organ or organ system, holozoic, no saprobic

Answer: C

Question. Read the given features carefully and select incorrect set of features for a respective member.
a. LPS layer present b. Diazotroph c. Peritrichous d. Sewage disposal
e. Obligate anaerobes f. Chemoautotrophs g. L-Lysine absent h. Aerobic
(a) Clostridium - a, c, d , e
(b) Rhizobium - a, b, c
(c) Azotobacter - a, b, g, h
(d) Methanogens - e, f, a, g

Answer: A

Question. Endospores formed by certain bacteria are actually the means for
(a) Reproduction
(b) Perennation
(c) Bioluminescence
(d) Red snow formation

Answer: B

Question. Pyrrophytes ·are similar to Euglenophytes but differ from chrysophytes in
(a) Mode of nutrition
(b) Motility and nature of flagella
(c) Presence of primary photosynthetic pigments
(d) Occurrence and cell wall composition

Answer: B

Question. Consider the following statements and select correct set of features W.r.t. the life cycle of Physarum
a. Haploid vegetative stage as myxamoebae
b. Diploid vegetative stage as plasmodium
c. Holocarplc and polycentric
d. Holocarpic and monocentric
e. Sporeic meiosis
f. Isogamous sexual reproduction
g. Anisogamous sexual reproduction with zygotic meiosis
(a) a, c, g
(b) b, c, g
(c) b, d, e, f
(d) b, c, e, f

Answer: D

Question. Mycelium with compact mass of hyphae as pseudo parenchymatous structure can be observed in the
(a) Fructification stage of slime moulds
(b) Gill of mushroom
(c) Asexual stage of bread mould
(d) Uredia stage of rust fungi

Answer: B

Question. Which one of the following combination of characters is correct for the given fungal group?
(a) Algal fungi : Coenocylic, cellulosic wall, zoospore, zygospore, dikaryophase present
(b) Conjugating fungi : Septate mycelium, chitinous wall, sporangiospore, shorter (n + n) phase
(c) Sac fungi : Septate mycelium, Ascogonium, Crozier stage, meiospores as ascospores, shorter dikaryophase
(d) Club fungi : Shorter primary mycelium stage, No sex organs , dominant dikaryophase, zygosporic meiosis

Answer: C

Question. Read the statements carefully
a. Hartig net is the network of intracellular mycelium of Boletus
b. Ectomycorrhiza forms ten percent of total mycorrhiza
c. Fungal partner of VAM belongs to zygomycetes or phycomycetes
(a) Only a & c are correct
(b) Only b & c are correct
(c) Only c is correct
(d) All are correct

Answer: B

Question. Identify A, Band C given below 

(a) A - DNA virus - Cauliflower mosaic virus
     B - RNA virus - Pox virus
     C - Relerovirus - HIV
(b) A - RNAvirus - T.M.V
B - DNA virus - T4
C - Retero virus - HIV
(c) A - RNA virus - Hepatitis B virus
B - Reterovirus - T.M.V
C - DNA virus - Φ × 174
(d) A - Reterovirus - Hepatitis B virus
B - RNA virus - T4
C - DNA virus - Pox virus

Answer: B

Question. Read the following statements carefully and identify correct statements w.r.t. Lichens
a. The association cannot tolerate air pollution, especially due to sulphur dioxide
b. lichens are annuals and their growth is slow
c. The fungal partner shows controiled parasitism
d. Soredia are most efficient means of asexual reproduction
e. Orchids seldom occur without this association
f. Foliose lichens are pioneers of succession on bare rock
(a) c, d, F
(b) a, c, d, f
(c) a, b, e
(d) a, c, d

Answer: D