NEET Biology MCQ - Biological Classification Viruses, Viroids, Prions And Kingdome Monera MCQ - Quiz-6 Solution

Q.1.

Anton van Leeuwenhoek belonged to … [ MPPMT 2002]

7%
a) France
71%
b) Holland
14%
c) Sweden
7%
d) Britain

Explanation

Q.2.

Botulism is … .. [ MPPMT 1992]

62%
a) Human disease due to parasitic bacteria
8%
b) Disease of various organisms
15%
c) A type of food poisoning
15%
d) A viral disease

Explanation

Q.3.

Which one is alga

27%
a) Rhodospirillum
53%
b) Cyanobacteria
13%
c) Purple bacteria
7%
d) Green bacteria

Explanation

Q.4.

Bacterial photosynthesis differs from photosynthesis of others in … [ JIPMER 1999]

8%
a) First product
17%
b) Number of phases
25%
c) Type of reductant
50%
d) All the above

Explanation

Q.5.

Retrovirus employs …. To make complementary DNA from RNA …

22%
a) DNA polymerase
11%
b) Restriction endonuclease
56%
c) Reverse transcriptase
11%
d) Reverse polymerase

Explanation

Q.6.

In blue green algae, product of photosynthesis is … [ AMU 2002]

22%
a) Glycerophosphate
67%
b) Glycogen like
0%
c) Glucoside
11%
d) Globulin

Explanation

Q.7.

Floral features are commonly used for identification of angiosperms because … .. [ CBSE 1998]

50%
a) Reproductive parts are more conservative
17%
b) Flowers can be safely pressed
17%
c) Flowers are nice to work with
17%
d) Flowers have various colours and scents

Explanation

Q.8.

Five –kingdom classification was proposed by … .[ MPPMT 1999 ]

0%
a) Linnaeus
75%
b) Whittaker
25%
c) John Ray
0%
d) Lamarck

Explanation

Q.9.

A completely free living organism which takes part in nitrogen fixation is … .. [ BHU 1999 ] Expanation is provided click on

12%
a) Anabaena
38%
b) Bacillus
50%
c) Azotobacter
0%
d) Rhizobium

Explanation

Q.10.

Bacterial resistance to antibiotic ampicillin can be due to presence of … [ Odisha 2003]

38%
a) Penicillinase
12%
b) Ampicillinase
38%
c) Lactanase
12%
d) Phosphotransferase

Explanation

Q.11.

Prokaryotic genetic system contains … [ CPMT 2002]

25%
a) DNA and histone
38%
b) DNA but no histone
25%
c) Histone but no DNA
12%
d) Neither DNA nor histones

Explanation

Q.12.

Viruses parasittising bacteria are …[ MPPMT 2010]

44%
a) Bacteriophages
33%
b) Bacto-viruses
22%
c) Retroviruses
0%
d) Plasmids

Explanation

Q.13.

Thermal bacteria survive in … [ BHU 2001]

33%
a) Hot water near 100°C
0%
b) Hot water near 85°C
44%
c) Hot sulphur spring near 70°C
22%
d) All the above

Explanation

Q.14.

Agrobacterium tumefaciens causes … [ CPMT 1998]

0%
a) Wilt
38%
b) Damping off
38%
c) Rust
25%
d) Crown gall

Explanation

Q.15.

Water of Ganges remains pure due to presence of ….. [MPPMT 1998]

50%
a) Bacteriophages
12%
b) Cyanophages
12%
c) Bacteria
25%
d) Hydrophytes

Explanation

Q.16.

Anthrax is due to a … .. [ DPMT 2002]

17%
a) Virus
50%
b) Bacterium
33%
c) Fungus
0%
d) Protozoan

Explanation

Q.17.

Which one is saprophytic in nutrition … .. [ CPMT 2001]

40%
a) Fungi
20%
b) Cyanobacteria
0%
c) Viruses
40%
d) All the above

Explanation

Q.18.

Classification given by Bentham and Hooker is … .. [ Odisha 2004]

0%
a) Artificial
40%
b) Natural
60%
c) Phylogenetic
0%
d) Numerical

Explanation

Q.19.

Cyanophyceae ( Blue Green Algae) belongs to … .. [ Pb.PMT1998]

0%
a) Plantae
60%
b) Protista
20%
c) Monera
20%
d) Metaphyta

Explanation

Q.20.

Bacterial endotoxin is … [ Odisha 2003]

40%
a) Lipopolysaccharide over the surface
40%
b) Protein inside the cell
20%
c) An excreted protein
0%
d) None of the above

Explanation

Q.21.

Match the columns

a)Nitrobacter	i)Free living aerobic nitrogen fixer
b)Clostridium	ii)Converts ammonia into nitrite
c) Nitrosococcus	iii)Changes nitrite to nitrate
d)Azotobacter	iv)Free living anaerobic nitrogen fixer

25%
a) a – ii, b – iv, c – iii, d – i
25%
b) a –iii, b – iv, c – ii, d - i
0%
c) a – iv, b – ii, c – i, d – iii
50%
d) a – i, b – ii, c – iii, d – iv

Explanation

Q.22.

Heterocysts that take part in nitrogen fixation occur in .. .. [ Pb. PMT 1997]

25%
a) Nostoc
0%
b) Polysiphonia
25%
c) Fucus
50%
d) Ulothrix

Explanation

Q.23.

Peptidoglycan is characteristic constituent of cell wall in … .. [ BHU 2000]

0%
a) Archaebacteria and Eukaryotes
25%
b) Eubacteria and unicellular Eukaryotes
75%
c) Bacteria and Cyanobacteria
0%
d) Monera and Protista

Explanation

Q.24.

Bacteria found in hot acidic aerobic conditions are … [ AMU 2011]

0%
a) Halophiles
50%
b) Thermoacidophiles
0%
c) Methanogens
50%
d) Rickettsiae

Explanation

Q.25.

Extrachromosomal DNA of bacteria is … [ AMU 2001]

50%
a) Mesosome
0%
b) Microsome
50%
c) Plasmid
0%
d) Chromosome

Explanation

Q.26.

Assertion: Nitrogen fixing bacteria of legume nodule live in oxygen depleted cells. Reason: Leghaemoglobin completely removes oxygen from nodule cells ….. [ AIIMS 2004]

25%
a) If both the assertion and reason are true and reason explains the assertion.
75%
b) If both the assertion and reason are true but reason does not explain the assertion
0%
c) If assertion is true but reason is false
0%
d) If assertion is false but reason is true.

Explanation

Q.27.

Number of criteria used in classifying organisms in five kingdom classification is

25%
a) 5
25%
b) 4
25%
c) 3
25%
d) 2

Explanation

Q.28.

Thallophyta includes … .. [ JIPMER 2000 ]

25%
a) Fungi and Bacteria
25%
b) Algae, Fungi , bacteria and Lichens
50%
c) Algae, Fungi and Lichens
0%
d) Algae and Fungi

Explanation

Q.29.

In Nostoc, the enzyme nitrogenase occurs in …. [ MPPMT 2001]

25%
a) Vegetative cells
50%
b) Heterocysts
25%
c) Both a and b
0%
d) Only in hormogones

Explanation

Q.30.

match the columns and bring out correct option of inhibitor and its effect

a) Chloramphenicol	p) Inhibits binding of aminoacyl-tRNA to ribosome
b) Erythromycin	q) Inhibits interaction between tRNA and mRNA
c) Neomycin	r) Inhibits initiation of translation
d) Streptomycin	s) Inhibits peptidyl transferase activity
e) Tetracycline	t) Inhibits translocation of mRNA over ribosome

33%
a) a – p, b –q, c - r, d - t, e - s
67%
b) a – r, b –p, c - t, d - s, e - q
0%
c) a – q, b –r, c - s, d - p, e - t
0%
d) a – s, b –t, c - q, d - r, e - p

Explanation

Q.31.

Cell wall of Gram(+) bacterium contains mucopolypeptide … [ WB 2007]

50%
a) 60-70%
25%
b) 70-80%
25%
c) 80-90%
0%
d) 90-100%

Explanation

Q.32.

Unicellular cyanobacteria reproduce asexually by … [ AIIMS 1997]

25%
a) Binary fission
50%
b) Fragmentation
25%
c) Hormogones
0%
d) Conjugation

Explanation

Q.33.

Which one is true about domain archaea? ..[ CBSE 2008]

0%
a) They differ from both prokaryotes and eukaryotes
50%
b) They completely differ from prokaryotes
25%
c) They resemble eukarya in all aspects
25%
d) They have some novel features absent in other prokaryotes and eukaryotes

Explanation

Q.34.

The smallest living cells with cell wall are … .. [ AMU 1998]

50%
a) Mycoplasma
0%
b) Viroids
25%
c) Blue –green Algae
25%
d) Bacteria

Explanation

Q.35.

Mitochondria are absent in … [ MPPMT 1994]

0%
a) Green Algae
25%
b) Brown algae
75%
c) Blue –green Algae
0%
d) Red Algae

Explanation

Q.36.

A free living aerobic and non-photosynthetic nitrogen fixing bacterium is … [ HPPMT 2005]

0%
a) Anabaena
0%
b) Clostridium
75%
c) Azotobacter
25%
d) Rhizobium

Explanation

Q.37.

Natural system of classification was proposed by … .. [ CPMT 2009]

25%
a) Bentham and Hooker
0%
b) Hutchinson
75%
c) Whittaker
0%
d) Engler and Parntl

Explanation

Q.38.

Virus cannot multiply of their own because they .. … [ AFMC 2000]

0%
a) Do not have sex organs
50%
b) Lack genetic material
50%
c) Lack cellular machinery to use its genetic material
0%
d) none of the above

Explanation

Q.39.

land becomes slippery during rains due to growth of … .. [ JIPMER 1997]

0%
a) Moss
20%
b) Brown Algae
40%
c) Green Algae
40%
d) Blue-green Algae

Explanation

Q.40.

Colourless unicellular cell wall bound, spherical or rod-shaped microorganisms lacking organized nucleus are … ..[CPMT 2004]

50%
a) Bacteria
50%
b) Mycoplasma
0%
c) Cyanobacteria
0%
d) Viruses

Explanation

Q.41.

Diphtheria is characterized by … [ Odisah 2005]

0%
a) Gum bleeding
0%
b) Suffocation
50%
c) Hydrophobia
50%
d) Dehydration

Explanation

Q.42.

Food poisoning is due to … .. [ AIIMS 1996]

40%
a) Clostridium botulinum
20%
b) Salmonella typhi
40%
c) Escherichia coli
0%
d) Bacillus megatherium

Explanation

Q.43.

Linnaean system of plant classification is based on … .. [ CPMT 2008]

33%
a) Morphological and anatomical characters
0%
b) Evolutionary trends
33%
c) Floral characters
33%
d) None of the above

Explanation

Q.44.

Nitrogen fixation is … [ Odisha 2005]

0%
a)N2 → NH3
25%
b) N2 → NO3
25%
c) N2 → Amino acid
50%
d) Both a and b

Explanation

Q.45.

Mucopeptide is abundant in cell wall of …[ MPPMT 1999]

0%
a) Cyanobacteria
60%
b) Gram(+) bacteria
20%
c) Gram(-) bacteria
20%
d) Bacteriophage

Explanation

Q.46.

Blue green algae are .. .. [ MPPMT 2004]

0%
a) Actinomycetes
60%
b) Eukaryotes
40%
c) Prokaryotes
0%
d) Acellular

Explanation

Q.47.

In classification of plants, the term cladistics refers to … .. [ kerala 2006]

60%
a) Phylogenetic classification
20%
b) Sexual classification
20%
c) Artificial classification
0%
d) Natural classification

Explanation

Q.48.

Classical systematic embodies/concept of classical taxonomist is … .. [ JIPMER 1997]

60%
a) Biological concepts
20%
b) Species concept
20%
c) Typological concept
0%
d) All the above

Explanation

Q.49.

Nuclear material without nuclear envelope occurs in … .. [ AMU 1998]

0%
a) Mycoplasma and Green Algae
25%
b) Bacteria and Green Algae
50%
c) Bacteria and Cyanobacteria
25%
d) Cyanobacteria and Red Algae

Explanation

Q.50.

Antibiotics are … [ MPPMT 2005]

80%
a) Medicines
10%
b) Toxins
0%
c) Plants
10%
d) Syrups

Explanation

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