Plant Physiology UPSC Questions

Biology

Plant Physiology MCQ Questions


1.
Who discovered the role of sunlight in purifying air through plant activity?
A.
Joseph Priestley
B.
Jan Ingenhousz
C.
T.W. Engelmann
D.
Melvin Calvin
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ANSWER :
B. Jan Ingenhousz
2.
Which pigment is considered the chief pigment associated with photosynthesis?
A.
Chlorophyll b
B.
Xanthophyll
C.
Carotenoid
D.
Chlorophyll a
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ANSWER :
D. Chlorophyll a
3.
In which part of the chloroplast are ATP and NADPH formed during the light reaction?
A.
Stroma
B.
Grana
C.
Thylakoid membrane
D.
Stroma lamella
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ANSWER :
C. Thylakoid membrane
4.
What is the first stable product formed during Calvin Cycle?
A.
OAA
B.
PEP
C.
PGA
D.
RuBP
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ANSWER :
C. PGA
5.
With reference to the use of Nano-technology in health sector, which of the following statement(s) is/are correct?
1.Targeted drug delivery is made possible by nanotechnology.
2.Nanotechnology can largely contribute to gene therapy.
Select the correct answer using the codes given below

UPSC - 2015

A.
1 only
B.
2 only
C.
Both 1 and 2
D.
Neither 1 nor 2
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ANSWER :
C. Both 1 and 2
6.
Which process is explained by the Z scheme?
A.
Cyclic photophosphorylation
B.
Electron transport
C.
Photorespiration
D.
Chemiosmosis
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ANSWER :
B. Electron transport