Botany and Zoology AFCAT Questions

AFCAT Biology

Botany and Zoology MCQ Questions


7.
Who received the Nobel Prize in 1961 for mapping the path of carbon assimilation in photosynthesis?
A.
Hans Krebs
B.
Cornelius van Niel
C.
Melvin Calvin
D.
T. W. Engelmann
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ANSWER :
C. Melvin Calvin
8.
The overall balanced equation of photosynthesis for green plants is:
A.
6CO2 + 6H2O → C6H12O6 + 6O2
B.
12CO2 + 6H2O → C6H12O6 + 12O2
C.
6CO2 + 12H2O → C6H12O6 + 6H2O + 6O2
D.
CO2 + 2H2O → CH2O + H2O + O2
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ANSWER :
C. 6CO2 + 12H2O → C6H12O6 + 6H2O + 6O2
9.
In the chloroplast, light reactions of photosynthesis occur in the:
A.
Thylakoid membranes (grana)
B.
Outer membrane
C.
Stroma
D.
Inter-membrane space
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ANSWER :
A. Thylakoid membranes (grana)
10.
The reaction centre chlorophyll of Photosystem I (PS I) has its absorption maximum at:
A.
660 nm
B.
720 nm
C.
700 nm
D.
680 nm
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ANSWER :
C. 700 nm
11.
In the Z-scheme of electron transport, electrons flow in the order:
A.
PS II → PS I → NADP+ → ETS
B.
PS I → ETS → PS II → NADP+
C.
NADP+ → PS I → PS II → ETS
D.
PS II → ETS → PS I → NADP+
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ANSWER :
D. PS II → ETS → PS I → NADP+
12.
Splitting of water (photolysis) during photosynthesis is associated with which photosystem?
A.
Neither photosystem
B.
Both PS I and PS II equally
C.
Photosystem I (PS I)
D.
Photosystem II (PS II)
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ANSWER :
D. Photosystem II (PS II)