Biological Classification — DPP 17

20 NEET questions from Biological Classification, with answers and explanations. Attempt it as a timed test to get scoring, accuracy breakdown and mistake tracking.

Attempt this test free 20 questions · 30 minutes · +80 marks
1
Match the following -
Biological Classification – NEET-1878
  1. A A-ii, B-i, C-iii, D-iv
  2. B A-i, B-iii, C-ii, D-iv
  3. C A-iii, B-iv, C-ii, D-I
  4. D A-iv, B-ii, C-iii, D-i
Show answer

Correct answer: A

2
Select incorrect statement about viroid :-
  1. A Free infectious RNA
  2. B It was discovered by T.O. Diener
  3. C It causes potato spindle tuber disease
  4. D It contains high molecular weight RNA
Show answer

Correct answer: D

3
Rust disease in wheat plant is caused by -
  1. A Ustilago
  2. B Puccinia
  3. C Agaricus
  4. D Claviceps
Show answer

Correct answer: B

4
Heterocystous cyanobacteria -
  1. A Only Nostoc.
  2. B Only Anabaena.
  3. C Both Nostoc and Anabaena.
  4. D Vibrio.
Show answer

Correct answer: C

5
Which of the following criterion was not used for classification of fungi?
  1. A Structure of mycelium
  2. B Structure of fruiting body
  3. C Complexity of cell wall
  4. D Mode of spore formation
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Correct answer: C

6
Main reason of water bloom in rivers, lakes, sea etc. is:-
  1. A Brown algae and green algae
  2. B Cyanobacteria and dinoflagellates
  3. C Eichornia
  4. D Fishes
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Correct answer: B

7
In phycomycetes, sexual reproduction occurs by
  1. A Isogamy and Anisogamy.
  2. B Isogamy and Oogamy.
  3. C Isogamy, Anisogamy and Oogamy.
  4. D Oogamy and Anisogamy.
Show answer

Correct answer: C

8
Which character indicates that Cyanobacteria are similar to higher green plants ?
  1. A Type of cell wall
  2. B Nitrogen fixation ability
  3. C Presence of chlorophyll 'a'
  4. D Presence of gelatinous sheath
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Correct answer: C

9
Given below in the digaram of bacteriophage. In which one of the options all the four parts A, B C and D are correct ?
Biological Classification – NEET-1554
Options:-
Biological Classification – NEET-1554
  1. A
  2. B
  3. C
  4. D
Show answer

Correct answer: B

10
Select correct statement with respect to Eubacteria.
  1. A Have very simple structure.
  2. B Peptidoglycan nature of cell wall.
  3. C Heterotrophs are most abundant in nature
  4. D All
Show answer

Correct answer: D

11
Somatogamy is the fusion of :-
  1. A Two vegetative/ somatic cell, of different strain/ genotypes to form diakaryotic cell.
  2. B Sperm with egg.
  3. C 2 somatic cell having identical strain.
  4. D Egg with another egg.
Show answer

Correct answer: A

12
How many organisms in the list given below are photosynthetic: -
Chlorobium, Clostridium, Mycobacterium, Nitrobacter, Nitrococcus, Euglena, Albugo, E. coli, Nostoc, Anabaena.
  1. A Six
  2. B Eight
  3. C Four
  4. D Five
Show answer

Correct answer: C

13
Select the incorrect statement among the following
  1. A Chrysophytes are found in fresh water as well as in marine environment.
  2. B Dinoflagellates are mostly fresh water organisms and are photosynthetic.
  3. C Majority of euglenoids are fresh water organisms.
  4. D Slime moulds are saprophytic protist
Show answer

Correct answer: C

14
The body of a multicellular fungus are organized into a rapidly growing individual filaments called :-
  1. A Mycelium
  2. B Hyphae
  3. C Rhizoids
  4. D Dikaryon
Show answer

Correct answer: B

15
Which of the following statements is wrong about lichen?
  1. A Lichens are sensitive to air pollution
  2. B Algal and fungal partner live mutually
  3. C Algae prepare food and fungi provide shelter, absorb water and minerals for algal partner
  4. D Alage live as master & fungi live as slave
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Correct answer: D

16
Select the correct combination of the statement (a-d) regarding the characteristics of certain organisms :
(a) Methanogens are Archaebacteria which produce methane in marshy areas
(b) Nostoc is filamentous blue-green alga which fixes atmospheric nitrogen
(c) Chemosynthetic autotrophic bacteria synthesize cellulose from glucose
(d) Mycoplasma lack a cell wall and can survive without oxygen
The correct statements are :
  1. A (a), (b), (c)
  2. B (b), (c), (d)
  3. C (a), (b), (d)
  4. D (b), (c)
Show answer

Correct answer: C

17
Which is parasitic?
  1. A Albugo
  2. B Rhizopus
  3. C Euglena
  4. D Slime mould
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Correct answer: A

18
The blue green algae which has large amount of protein and is edible in nature :-
  1. A Chlorella
  2. B Spirulina
  3. C Anabena
  4. D Oscillatoria
Show answer

Correct answer: B

19
Sexual reproduction in fungus occurs in the following sequential event. Arrange them properly. (A) Fusion of two nuclei called karyogamy. (B) Fusion of protoplasm between two motile or non-motile gametes. (C) Meiosis in zygote resulting in haploid spores.
  1. A $\mathrm { A } \rightarrow \mathrm { B } \rightarrow \mathrm { C }$
  2. B $\mathrm { B } \rightarrow \mathrm { A } \rightarrow \mathrm { C }$
  3. C $\mathrm { C } \rightarrow \mathrm { B } \rightarrow \mathrm { A }$
  4. D $\mathrm { C } \rightarrow \mathrm { A } \rightarrow \mathrm { B }$
Show answer

Correct answer: B

20
Find the correct statements about fungi :-
(A) Most of the fungi are saprophytes
(B) Fungi can also survive as symbionts
(C) Sexual reproduction in fungi involves three steps
(D) Reduction division in fungi occurs in fruiting bodies which forms haploid spores
  1. A A, B are correct
  2. B C, D are correct
  3. C A, B & C are correct
  4. D A, B, C & D are correct
Show answer

Correct answer: D

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