Biological Classification — DPP 18

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
Which group shows the most extensive metabolic diversity ?
  1. A Plantae
  2. B Animalia
  3. C Monera
  4. D Fungi
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Correct answer: C

2
Given below are two statements:
Statement-I: Fungi and members of the Monera and Protista having cell walls have now been excluded from Plantae, although according to earlier classifications they were placed in the same kingdom.
Statement-II: The earliest systems of classification used only gross superficial morphological characters such as habit, colour, number and shape of leaves etc.
In the light of the above statements, choose the most appropriate answer from the options given below:
  1. A Both Statement-I and Statement-II are correct.
  2. B Both Statement-I and statement-II are incorrect.
  3. C Statement-I is correct but Statement-II is incorrect.
  4. D Statement-I is incorrect but Statement-II is correct.
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Correct answer: A

3
Nitrogen fixing bacteria convert :-
  1. A $\mathrm { N } _ { 2 } \rightarrow \mathrm { NH } _ { 3 }$
  2. B $\mathrm { NH } _ { 4 } { } ^ { + } \rightarrow$ Nitrates
  3. C $\mathrm { NO } _ { 2 } \rightarrow \mathrm { NO } _ { 3 }$
  4. D $\mathrm { NO } _ { 3 } \rightarrow \mathrm {~N} _ { 2 }$
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Correct answer: A

4
Assertion : Euglena can be placed in the plant kingdom due to the presence of chlorophyll.
Reason : Euglena cannot be classified on the basis of two kingdom system of classification.
  1. A If both Assertion and Reason are true and the Reason is the correct explanation of the Assertion.
  2. B If both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion.
  3. C If Assertion is true but Reason is false.
  4. D If both Assertion and Reason are false.
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Correct answer: B

5
Fungi imperfecti are called :
  1. A members of phycomycetes
  2. B members of ascomycetes
  3. C members of basidiomycetes
  4. D members of deuteromycetes
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Correct answer: D

6
System of classification proposed by Linnaeus was:-
  1. A Artificial
  2. B Natural
  3. C Sexual
  4. D Both (A) and (C)
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Correct answer: D

7
$\_\_\_\_$ are small naked fragments of RNA that infect plant cells.
  1. A Prions
  2. B Nucleons
  3. C Prophages
  4. D Viroids
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Correct answer: D

8
Which of the following are not mentioned in five kingdom classification?
  1. A Virus, Viroids, Prions and Lichens
  2. B Only Viruses
  3. C Viroids and Prions only
  4. D Virus and Lichens only
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Correct answer: A

9
Photosynthesis of Blue green algae is:-
  1. A Oxygenic
  2. B Non oxygenic
  3. C Both oxygenic and non-oxygenic
  4. D None
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Correct answer: A

10
In class phycomycetes the mycelium is :-
  1. A Coenocytic and aseptate.
  2. B Coenocytic and septate.
  3. C Uninucleate and aseptate.
  4. D Multinucleate and septate.
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Correct answer: A

11
Which of the following group of kingdom Protista is being described in the statements given below ?
(i) This group includes diatoms and golden algae.
(ii) They are microscopic and float passively in water currents (plankton).
(iii) Most of them are photosynthetic.
(iv) They have deposits in their habitat; this accumulation over billion of years is referred to as 'diatomaceous earth'.
  1. A Dinoflagellates
  2. B Chrysophytes
  3. C Euglenoids
  4. D Slime moulds
Show answer

Correct answer: B

12
Match the column A and column B and select the correct option:
Biological Classification – NEET-1726
  1. A A-i, B-iii, C-iv, D-v, E-ii
  2. B A-iv, B-ii, C-i, D-iii, E-v
  3. C A-iv, B-ii, C-i, D-v, E-iii
  4. D A-iv, B-i, C-ii, D-v, E-iii
Show answer

Correct answer: C

13
Auxospores are formed by :-
  1. A Diatoms
  2. B Euglenoids
  3. C Dinoflagellates
  4. D bacteria
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Correct answer: A

14
Basidiomycetes include :-
  1. A Mushrooms, Toadstools, puffballs, and bracket fungi.
  2. B Smut fungi and rust fungi.
  3. C Both (A) and (B)
  4. D Bread mould, sac fungi and algal fungi.
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Correct answer: C

15
Which of the following statements is correct.
I. Mycoplasma has no cell wall.
II. Mycoplasma is the smallest living organism
III. Mycoplasma cannot survive without oxygen.
IV. Mycoplasma are pathogenic in animals and plants. V. True sexuality is not found in bacteria. VI. A short of sexual reproduction by adopting a primitive DNA transfer from one bacterium to the other occurs.
  1. A All
  2. B Only III
  3. C I, II, IV, V, VI
  4. D I, III, VI
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Correct answer: C

16
The evolution of organisms in the five kingdom system is most accurately described by the following sequence :-
  1. A Monera to fungi, fungi to protista, protista to plants and plants to Animals.
  2. B Monera to protists, from protists to fungi, plants and animals, separately
  3. C Protists to Monera, Monera to fungi, from fungi to plants and animals, separately
  4. D Monera to protista and animals from protista, plants with the fungi by losing ability of photosynthesis in plants.
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Correct answer: B

17
Archaebacteria differ from other bacteria in having a different ....(a).... structure. Methanogens are present in ....(b)..... of serveral ruminant animals and are responsible for the production of ....C..... from the dung of these animals. Archaebacteria are special since they live in some of the .....d.... habitats.
What are the most suitable words in place of a, b, c and d respectively from the following
option: -
Biological Classification – NEET-1685
  1. A (a) - Cell membrane, (b) - Head, (c) - Biogas, (d) - Most harsh
  2. B (a) - Cell wall, (b) - Tongue, (c) DDT, (d) - Most favourable
  3. C (a) - Cell membrane, (b) - Heart, (c) Biogas, (d) - Most common
  4. D (a) - Cell wall, (b) - Gut, (c) - Methane, ( d) - Most hash
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Correct answer: D

18
Select false statement :-
  1. A Lichens are symbiotic association between algae & fungi
  2. B Viruses are smaller than bacteria
  3. C Virus name are obligate parasites
  4. D Viruses are facultative parasite
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Correct answer: D

19
Which of the following statement is true about Euglena?
  1. A They show flagellar locomotion.
  2. B They have a rigid cell wall.
  3. C They have no chloroplast.
  4. D They are obligate autotroph.
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Correct answer: A

20
In which kingdom would you classify the archaea and nitrogen-fixing organisms, if the five-kingdom system of classification is used:-
  1. A Plantae
  2. B Fungi
  3. C Protista
  4. D Monera
Show answer

Correct answer: D

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