Photosynthesis (Photosynthesis as a means of Autotrophic Nutrition; Site of Photosynthesis take place; Pigments involved in Photosynthesis (Elementary idea); Photochemical and Biosynthetic Phases of Photosynthesis; Cyclic and Non Cyclic and Photophosphorylation...) NEET Questions

Biology - Plant Physiology

Photosynthesis (Photosynthesis as a means of Autotrophic Nutrition; Site of Photosynthesis take place; Pigments involved in Photosynthesis (Elementary idea); Photochemical and Biosynthetic Phases of Photosynthesis; Cyclic and Non Cyclic and Photophosphorylation...) MCQ Questions


7.

Which pigment is primarily responsible for photosynthesis in plants?

NEET - 2017

A.

Chlorophyll b

B.

Chlorophyll a

C.

Carotenoids

D.

Xanthophylls

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ANSWER :

B. Chlorophyll a

8.
Photorespiration in plants leads to:
A.
Release of COâ‚‚
B.
Consumption of Oâ‚‚
C.
No ATP production
D.
All of the above
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ANSWER :
D. All of the above
9.
Which enzyme is responsible for COâ‚‚ fixation in C4 plants?
A.
RuBisCO
B.
PEP carboxylase
C.
ATP synthase
D.
Cytochrome oxidase
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ANSWER :
B. PEP carboxylase
10.
Which of the following factors does NOT directly affect the rate of photosynthesis?
A.
Light intensity
B.
Carbon dioxide concentration
C.
Oxygen concentration
D.
Temperature
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ANSWER :
C. Oxygen concentration
11.
Which of the following are required for the dark reaction of photosynthesis? (NEET PYQ)
A.
Light, Chlorophyll, COâ‚‚
B.
Chlorophyll, COâ‚‚, ATP
C.
COâ‚‚, ATP, NADPH
D.
Light, ATP, NADPH
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ANSWER :
C. COâ‚‚, ATP, NADPH
12.
Which process generates both ATP and NADPH in chloroplasts?
A.
Cyclic photophosphorylation
B.
Non-cyclic photophosphorylation
C.
Photolysis of water
D.
Calvin cycle
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ANSWER :
B. Non-cyclic photophosphorylation