Main Concepts of Life Science TNPSC Group 1 Questions

Botany & Zoology

Main Concepts of Life Science MCQ Questions

13.
Viruses are inert
A.
Outside the host cell
B.
inside host cell
C.
both of these
D.
None of these
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ANSWER :
A. Outside the host cell
14.
W.M. Stanley got Nobel Prize for
A.
DNA
B.
Virus
C.
RNA
D.
Bacteria
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ANSWER :
B. Virus
15.
Gnetum is a
A.
Lianas
B.
Shrub
C.
Tree
D.
All the above
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ANSWER :
D. All the above
16.
In photosynthesis, the light reaction is known as hill reaction and the dark reaction is known as
A.
Dark reaction
B.
Blackman reaction
C.
Darkman reaction
D.
None of these
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ANSWER :
C. Blackman reaction
17.
Oxygen in the universe is replinished by
A.
chemosynthesis
B.
bacterial photosynthesis
C.
photolysis of water
D.
higher plant photosynthesis
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ANSWER :
D. higher plant photosynthesis
18.
The gas evolved by leaves during photosynthesis is
A.
hydrogen
B.
oxygen
C.
nitrogen
D.
chlorine
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ANSWER :
B. oxygen