Plant Physiology UPSC Questions

Biology

Plant Physiology MCQ Questions


13.
Which scientist used radioactive 14C to trace the path of carbon in photosynthesis?
A.
T.W. Engelmann
B.
Melvin Calvin
C.
Cornelius van Niel
D.
Jan Ingenhousz
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ANSWER :
B. Melvin Calvin
14.

What is the primary CO2 acceptor in C3 plants?

A.

PEP

B.

PGA

C.

RuBP

D.

OAA

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ANSWER :

C. RuBP

15.
In which photosystem does water splitting occur?
A.
Photosystem I
B.
Photosystem II
C.
Both I and II
D.
None
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ANSWER :
B. Photosystem II
16.
The enzyme RuBisCO is located in which part of the chloroplast?
A.
Grana
B.
Thylakoid membrane
C.
Stroma
D.
Lumen
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ANSWER :
C. Stroma
17.
Which of the following is NOT a product of the light reaction?
A.
Oxygen
B.
Glucose
C.
ATP
D.
NADPH
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ANSWER :
B. Glucose
18.
In cyclic photophosphorylation, only which photosystem is involved?
A.
PS I
B.
PS II
C.
Both PS I and II
D.
Neither
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ANSWER :
A. PS I