Biological Classification — DPP 5

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 one of the following pairs is correctly matched?
Biological Classification – NEET-1602
  1. A Rhizobium - Parasite in the root of legume plants.
  2. B Mycorrhizae - Symbiotic association between roots of higher plants and fungi
  3. C Yeast - Production of biogas
  4. D Slime moulds - are mostly parasitic
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Correct answer: B

2
Which of the following are noncellular organisms that are characterized by having an inert crystalline structure outside the living cell:-
  1. A Bacteria
  2. B Mycoplasma
  3. C Virus
  4. D Lichen
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Correct answer: C

3
Which of the following is not a viral disease?
  1. A AIDS and mumps
  2. B Small pox and herpes
  3. C Influenza
  4. D Cholera
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Correct answer: D

4
Which one of the following cocci appears like grapes under microscope?
  1. A Streptococci
  2. B Diplococci
  3. C Staphylococci
  4. D Pneumococci
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Correct answer: C

5
Protozoans are not included in animal kingdom because :-
  1. A Mostly asymmetrical.
  2. B Unicellular eukaryotes.
  3. C Heterotrophic nature.
  4. D Multicellular prokaryotes.
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Correct answer: B

6
I. Instead of a cell wall, they have a portion rich in pellicle making their body flexible. II. They have 2 flagella, a short and a long one. III. They have mixotrophic nutrition. IV. In light, they are photosynthetic, but act as heterotroph when they are in dark. V. They are connecting link between plants and animals. The above statements are assigned to :-
  1. A Dinoflagellates
  2. B Slime mould
  3. C Desmids and diatoms
  4. D Euglena
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Correct answer: D

7
Red sea is due to :-
  1. A Diatoms
  2. B Gonyaulax
  3. C Trichodesmium
  4. D Alternaria
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Correct answer: C

8
Which group of protists is responsible for producing neurotoxin that become concentrated in the aquatic food chain ?
  1. A Chlorophyta
  2. B Chrysophyta
  3. C Dinoflagellates
  4. D Slime moulds
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Correct answer: C

9
Find the incorrect match :-
Biological Classification – NEET-1415

  1. A Ustilago - belongs to class basidiomycetes
  2. B Agaricus - belongs to class basidiomycetes
  3. C Trichoderma - sexual cycle is found
  4. D Alternaria - sexual cycle is not found
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Correct answer: C

10
Diatomaceous earth is used as heat insulator in boilers and steam pipes because the cell wall of diatom -
  1. A Composed of Iron
  2. B Composed of Silicon dioxide
  3. C Is conductor of heat
  4. D Is bad conductor of electricity
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Correct answer: B

11
Which of the following statements are correct?
(A) Mycoplasma has no cell wall
(B) Viruses can multiply only when they are present inside the living cell.
(C) True sexuality is not found in bacteria.
(D) Mycoplasma cannot survive without $\mathrm { O } _ { 2 }$.
  1. A A, B, C & D
  2. B A, B & D
  3. C A, B & C
  4. D C & D
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Correct answer: C

12
Trichodesmium erythraeum which imparts red colour to sea water of red sea is a :-
  1. A Cyanobacterium
  2. B Red Algae
  3. C Diatom
  4. D Red Coral
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Correct answer: A

13
How many of the following are examples of class Ascomycetes of fungi?
Albugo, Alternaria, Neurospora, Agaricus, Penicillium.
  1. A Two only
  2. B Three only
  3. C Four only
  4. D One only
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Correct answer: A

14
The five kingdom classification was proposed by-
  1. A R.H. Whittaker
  2. B C.Linnaeus
  3. C A. Roxberg
  4. D Virchow
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Correct answer: A

15
Normally how many ascospores are formed in an ascus :-
  1. A 4 - ascospores
  2. B 8 - ascospores
  3. C 16 ascospores
  4. D 24 ascospores
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Correct answer: B

16
Cyanobacteria have :-
  1. A Chl a similar to plant including green algae.
  2. B Distinct from chlorophyll of plants.
  3. C Bacteriochlorophyll.
  4. D Bacteriorhodopsin.
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Correct answer: A

17
Neurospora, which is popularly known as Drosophilla of plant kingdom, belongs to :-
  1. A Phycomycetes
  2. B Ascomycetes
  3. C Basidiomycetes
  4. D Deuteromycetes
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Correct answer: B

18
Slime mould is known as naked fungi.
  1. A Cell membrane absent
  2. B Cell wall absent
  3. C Cell wall and cell membrane absent
  4. D Never naked
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Correct answer: B

19
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Cyanobacteria that are referred to as blue green algae are not "algae" anymore.
Reason (R) : All unicellular prokaryotes are placed in kingdom Monera and algae are placed in kingdom Plantae
In the light of the above statements, choose the most appropriate answer from the options given below :
  1. A Both (A) & (R) are correct but (R) is not the correct explanation of (A).
  2. B (A) is correct but (R) is not correct.
  3. C (A) is not correct but (R) is correct.
  4. D Both (A) & (R) are correct and (R) is the correct explanation of (A).
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Correct answer: D

20
The given statements are some characters of a particular group of Kingdom Protista.
(i) Most of them are fresh water organisms found in standing water.
(ii) They have a protein rich layer (called pellicle) which makes their body flexible.
(iii) They have two flagella, a short and a long one.
(iv) Though they are photosynthetic in the presence of sunlight, but in the absence of sunlight they behave like heterotrophs by predating on other smaller organisms.
Identify the correct group on the basis of these characters.
  1. A Protozoans
  2. B Chrysophytes
  3. C Slime moulds
  4. D Euglenoids
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Correct answer: D

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