Biological Classification — DPP 7

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
Sexual reproduction is absent in :-
  1. A Phycomycetes
  2. B Deuteromycetes
  3. C Zygomycetes
  4. D Basidiomycetes
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Correct answer: B

2
All fungi are :-
  1. A With chlorophyll
  2. B Without chlorophyll
  3. C With carotene
  4. D Wall less
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Correct answer: B

3
Which organism is responsible for red surface of sea?
  1. A Euglena
  2. B Gonyaulax
  3. C Amoeba
  4. D Paramoecium
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Correct answer: B

4
Assertion : Outside a living cell, viruses have must crystalline statements.
Reason : Viroids have a protein coat.
  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: C

5
Members of phycomycetes are found :-
I. In aquatic habitat.
. On decaying wood.
III. On moist and damp places.
IV. As obligate parasite on plants.
  1. A None of the above
  2. B I and IV
  3. C II and III
  4. D All of the above
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Correct answer: D

6
Plant pathogenic bacteria are mostly :-
  1. A Gram + Non spore forming
  2. B Gram - Negative non spore forming
  3. C Gram + spore forming
  4. D Gram (-) spore forming
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Correct answer: B

7
The main difference between gram +ve and gram -ve resides in the composition of :-
  1. A Cilia
  2. B Cell-wall
  3. C Cell-membrane
  4. D Cytoplasm
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Correct answer: B

8
The most primitive monerans are :-
  1. A Archaebacteria
  2. B Eubacteria
  3. C Filamentous bacteria
  4. D Cyanobacteria
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Correct answer: A

9
Which one of the following pairs is mismatched :-
  1. A Penicillium - Source of antibiotics
  2. B Albugo - Parasitic fungi on legume
  3. C Neurospora - Used in biochemical and genetic work
  4. D Agaricus - Edible fungus
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Correct answer: B

10
Which one of the following is not a fungal disease?
  1. A White Rust of crucifers
  2. B Loose smut of wheat
  3. C Citrus canker
  4. D Red rot of sugarcane
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Correct answer: C

11
Archaebacterial cell lacks :-
  1. A Peptidoglycan
  2. B DNA
  3. C Ribosomes
  4. D Branched Chain Lipids
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Correct answer: A

12
$\_\_\_\_$ is a parasite on mustard.
  1. A Albugo
  2. B Puccinia
  3. C Yeast
  4. D Ustilago
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Correct answer: A

13
Which of following microbes serve as an important biofertiliser in paddy fields ?
  1. A Glomus
  2. B Azotobacter
  3. C Anabaena
  4. D Rhizobium
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Correct answer: C

14
Assertion : Deuteromycetes are known imperfect fungi.
Reason : Sexual reproduction is absent in deuteromycetes.
  1. A Both assertion and reason are true and reason is the correct explanation of assertion.
  2. B Both assertion and reason are true and reason is not the correct explanation of assertion.
  3. C Assertion is true but reason is false.
  4. D Both assertion and reason are false.
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Correct answer: A

15
What is true about Cyanobacteria?
  1. A Oxygenic with nitrogenase.
  2. B Oxygenic without nitrogenase.
  3. C Non-oxygenic with nitrogenase.
  4. D Non-oxygenic without nitrogenase.
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Correct answer: A

16
Archaebacteria differ from other bacteria in having a:-
  1. A Different cell wall and cell membrane structure
  2. B Different cellular organization
  3. C Parasitic nature
  4. D Both (B) and (c)
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Correct answer: A

17
Which of the following statements is wrong about Archaebacteria?
  1. A They live in some of the most harsh habitats.
  2. B They are recently evolved group.
  3. C Cell wall is peptidoglycan less.
  4. D They are unlike most other bacteria.
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Correct answer: B

18
Fusion of two gametes which are dissimilar in size is termed as
  1. A Oogamy
  2. B Isogamy
  3. C Anisogamy
  4. D Zoogamy
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Correct answer: C

19
Heterocyst is a structure which is associated with :-
  1. A Reproduction
  2. B Respiration
  3. C Nitrogen fixation
  4. D Locomotion
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Correct answer: C

20
Diatomaceous earth is used for all except :-
  1. A Polishing.
  2. B Filtration of oil and syrups.
  3. C Sound and fire proof room.
  4. D Biogas.
Show answer

Correct answer: D

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