Plant Physiology UPSC Questions

Biology

Plant Physiology MCQ Questions


13.
What is the primary CO2 acceptor in C3 plants?
A.
PEP
B.
PGA
C.
RuBP
D.
OAA
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ANSWER :
C. RuBP
14.
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
15.
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
16.
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
17.
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
18.
Which part of the chloroplast is associated with chemiosmosis during photosynthesis?
A.
Outer membrane
B.
Stroma
C.
Thylakoid membrane
D.
Intermembrane space
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ANSWER :
C. Thylakoid membrane