Cellular Respiration and Photosynthesis NDA Questions

NDA BIOLOGY

Cellular Respiration and Photosynthesis MCQ Questions


7.
Jan Ingenhousz demonstrated that photosynthesis requires:
A.
Phosphorus
B.
High temperature
C.
Sunlight
D.
Nitrogen
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ANSWER :
C. Sunlight
8.
The Calvin cycle (C3 pathway) was discovered by:
A.
T.W. Engelmann
B.
Julius von Sachs
C.
Melvin Calvin
D.
Hatch and Slack
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ANSWER :
C. Melvin Calvin
9.
The light reactions of photosynthesis occur in the:
A.
Cytoplasm
B.
Stroma of chloroplast
C.
Matrix of mitochondria
D.
Thylakoid membranes
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ANSWER :
D. Thylakoid membranes
10.
Which of the following is the correct overall equation for photosynthesis?
A.
6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂
B.
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O
C.
6CO₂ + 12H₂O → C₆H₁₂O₆ + 6H₂O + 6O₂
D.
6CO₂ + 6O₂ → C₆H₁₂O₆ + 6H₂O
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ANSWER :
C. 6CO₂ + 12H₂O → C₆H₁₂O₆ + 6H₂O + 6O₂
11.
During the light reactions of photosynthesis, water molecules are split in a process called:
A.
Hydrolysis
B.
Glycolysis
C.
Photophosphorylation
D.
Photolysis
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ANSWER :
D. Photolysis
12.
Which photosystem is involved in the splitting of water molecules?
A.
Photosystem I (PS I)
B.
Neither PS I nor PS II
C.
Both PS I and PS II equally
D.
Photosystem II (PS II)
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ANSWER :
D. Photosystem II (PS II)