Botany and Zoology AFCAT Questions

AFCAT Biology

Botany and Zoology MCQ Questions


1.
Which pigment is the chief pigment associated with photosynthesis?
A.
Xanthophyll
B.
Chlorophyll b
C.
Carotenoid
D.
Chlorophyll a
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ANSWER :
D. Chlorophyll a
2.
Who is credited with discovering oxygen in 1774 and demonstrating that plants restore air?
A.
T. W. Engelmann
B.
Julius von Sachs
C.
Joseph Priestley
D.
Jan Ingenhousz
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ANSWER :
C. Joseph Priestley
3.
Which scientist showed that sunlight is essential for the purifying action of green plants on air?
A.
Joseph Priestley
B.
Melvin Calvin
C.
Cornelius van Niel
D.
Jan Ingenhousz
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ANSWER :
D. Jan Ingenhousz
4.
Who provided the first evidence for the production of glucose during plant growth?
A.
Joseph Priestley
B.
T. W. Engelmann
C.
Julius von Sachs
D.
Melvin Calvin
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ANSWER :
C. Julius von Sachs
5.
Who described the first action spectrum of photosynthesis using Cladophora and aerobic bacteria?
A.
Julius von Sachs
B.
Cornelius van Niel
C.
Melvin Calvin
D.
T. W. Engelmann
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ANSWER :
D. T. W. Engelmann
6.
Who proved using studies on purple and green sulphur bacteria that O2 released in photosynthesis comes from water?
A.
Melvin Calvin
B.
Joseph Priestley
C.
Julius von Sachs
D.
Cornelius van Niel
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ANSWER :
D. Cornelius van Niel