BIOLOGICAL CLASSIFICATION-BIOLOGY-NEET-QUESTIONS

 

                        BIOLOGICAL CLASSIFICATION

1. Gram-negative cells stain pink because:

A) they have specialised lipids in their cell walls.

B) their peptidoglycan layer is thin.

C) their peptidoglycan layer is thick.

D) they are receptive to antibiotics.

Correct Answer: B

2. The given figure represent a type of virus with two parts labelled as 1 and 2. Identify the virus and the labelled parts. 

A) 1-R2NA            2-Capsid        Virus -Tobacco Mosaic Virus

B) 1-DNA             2-Capsid       Virus -Tobacco Mosaic Virus

C) 1-RNA             2-Lipid          Virus -Tobacco Mosaic Virus

D) 1-RNA             2-Protein       Virus -HIV

  • Correct Answer: A


  • 3. Which of the following regarding protists, in general, is false?

A) Protists are always parasitic.

B) Protists are single-celled.

C) Protists are heterotrophic.

D) All of the above

Correct Answer: D

4. An organism having cytoplasm, DNA and RNA but no cell wall is:

A) Cyanobacterium

B) Mycoplasma

C) Bacterium

D) Virus

Correct Answer: B

5. Most of the antibiotics have no effect on viruses because:

A) they kill all bacteria which form host of virus.

B) viruses are too small in size for antibiotics to act on them.

C) viruses have no metabolism of their own.

D) viruses produce a thick covering and endospores.

Correct Answer: C

6.  During the evolution of eukaryotes from prokaryotes, which of the following did not occur?

A) Infolding of the flexible cell membrane.

B) Loss of the cell wall.

C) A switch from aerobic to anaerobic metabolism.

D) Endosymbiosis of once free-living prokaryotes.

Correct Answer: C

7.  Match the following columns.

Column - IColumn - II
A.Rod-shapedI.Coccus
B.SphericalII.Bacillus
C.Spiral-shapedIII.Vibrio
D.Comma-shapedIV.Spirrillum

A) A-III      B-II       C-I        D-IV

B) A-IV      B-III      C-II       D-I

C) A-II       B-I        C-IV      D-III

D) A-I        B-IV      C-III      D-II

Correct Answer: C

8. A tooth scraping yields large numbers of corkscrew shaped bacteria. These bacteria are referred to as:

A) Bacilli

B) Cocci

C) Spirilli

D) Helici

Correct Answer: C

9. The bacterium Bacillus thuringiensis can withstand heating, dryness, and toxic chemicals that would kill most other bacteria. This indicates that it is probably able to form:

A) Pseudopodia

B) Endotoxins

C) Endospores

D) Pili

Correct Answer: C

10.  Which of the following facts differentiates the plant virus from other viruses?

A) DNA is the genetic material

B) Obligate parasites

C) RNA is the genetic material

D) Nucleo-protein nature

Correct Answer: C

11.  Which of the following does not contain chlorophyll?

A) Fungi

B) Algae

C) Bryophyta

D) Pteridophyta

  • Correct Answer: A

  • 12.  Pseudomycelium is a characteristic feature of:

A) Mushroom

B) Mucor

C) Bread mould

D) Yeast

Correct Answer: D

13.  Match the type of protozoans given in column-I with their examples given in column-II and choose the correct option.                   

Column-I (Type of Protozoans)Column-II (Examples)
A.Amoeboid protozoansI.Paramoecium
B.Ciliated protozoansII.Plasmodium
C.Flagellated protozoansIII.Amoeba
D.SporozoansIV.Trypanosoma

A) A-I        B-III      C-IV      D-II

B) A-III      B-I        C-II       D-IV

C) A-III      B-I        C-IV      D-II

D) A-III      B-IV      C-I        D-II

Correct Answer: C


14.
Read the following statements and answer the question given below.
(i) They are saprophytic protists.
(ii) Under suitable conditions, they form an aggregation (called plasmodium) which may grow and spread over several feet.
(iii) During unfavourable conditions, the plasmodium differentiates and forms fruiting bodies bearing spores at their tips.
Which of the following class of protists is being described by the above statements?

A) Euglenoids

B) Dinoflagellates

C) Slime moulds

D) Protozoans

Correct Answer: C

15. 

Consider the below statements and identify the correct statements regarding classification.
(i) Biological classification is the scientific ordering of organisms in a hierarchical series of groups on the basis of their relationships, i.e. morphological, evolutionary and others.
(ii) Whittaker classified organisms on the basis of autotrophic and heterotrophic mode of nutrition.
(iii) In five kingdom system of classification, living organisms can be divided into prokaryotic and eukaryotic cells on the basis of cell structure.

A) (i), (ii) and (iii) 

B) (i) and (iii)

C) (ii) and (iii)

D)        (i) and (ii)

Correct Answer: A

16. Match column-I with column-II and select the correct answer using the codes given below.
Column-I (Fungus name)Column-II (Commonly called)
A.PucciniaI.Yeast
B.UstilagoII.Mushroom
C.AgaricusIII.Smut fungus
D.SaccharomycesIV.Rust fungus

A) A-I        B-II       C-III      D-IV

B) A-II       B-III      C-IV      D-I

C) A-III      B-IV      C-I        D-II

D) A-IV      B-III      C-II       D-I

Correct Answer: D

17. Antibiotics are mostly obtained from:

A) Bacteria

B) Viruses

C) Angiosperms

D) Fungi

Correct Answer: A

 

18. Identify the following figures. 

A)  A - Euglena,      B - Paramoecium,           C - Agaricus

B)  A - Euglena,      B - Planaria,                  C - Agaricus

C)  A - Planaria,     B - Paramoecium,           C - Agaricus

D)  A - Euglemi,      B - Paramoecium,           C - Aspergillus

Correct Answer: A

19. Bacteria were regarded to be plants because:

A) some of them are green.

B) they are present everywhere.

C) some of them cannot move.

D) they have a rigid cell wall.

Correct Answer: D

20. Locomotory structures are absent in:

A) Sporozoans

B) Ciliates

C) Zooflagellates

D) Rhizopods

Correct Answer: A

  21.  

Which of the following are the characters of Dinoflagellates?
(i) Planktonic golden yellow algae with soap box like structure.
(ii) Marine red biflagellated protista.
(iii) Appear yellow, green, brown, blue and red in colour.
(iv) Biflagellated organisms with pellicle.
(v) Saprophytic or parasitic unicellular forms.

A) (i), (ii) and (iii) only

B) (ii), (iv) and (v) only

C) (ii) and (iii) only

D) (ii) and (v) only

Correct Answer: C

22. How many kingdoms contain eukaryotes in five kingdom system of classification of R.H Whittaker?

A) Four kingdoms

B) One kingdom

C) Two kingdoms

D) Three kingdoms

Correct Answer: A

23. Match column-I with column-II and select the correct answer using the codes given below.

Column-I (Kingdom)Column-II (Class)
A.PlantaeI.Arhaebacteria
B.FungiII.Euglenoids
C.ProtistaIII.Phycomucetes
D.MoneraIV.Algae

A) A-IV         B-III     C-II     D-I

B) A-I          B-II     C-III     D-IV

C) A-III        B-IV    C-II      D-I

D) A-IV         B-II    C-III     D-I

Correct Answer: A

24.  Litmus is obtained from:

A)  Lichen

B)  Algae

C)  Fungi

D)  Protozoa

Correct Answer: A

25.  A bacteriophage is:

A) a virus attacking a bacterium.

B) a bacterium attacking a virus.

C) a stage in the life-cycle of bacterium.

D) virus attacking another virus.

Correct Answer: A

  

 

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