Physiology of Plants and Animals CDS Questions

CDS Biology

Physiology of Plants and Animals MCQ Questions


13.
Glycolysis, the first step of respiration in which glucose is broken down into pyruvate, occurs in the:
A.
Chloroplast
B.
Nucleus
C.
Cytoplasm
D.
Mitochondrial matrix
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ANSWER :
C. Cytoplasm
14.
Anaerobic respiration in yeast, used industrially in brewing and baking, produces:
A.
Lactic acid and oxygen
B.
Methane and water
C.
Ethanol and carbon dioxide
D.
Glucose and ATP only
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ANSWER :
C. Ethanol and carbon dioxide
15.
During vigorous exercise, when oxygen supply to muscles is insufficient, human muscle cells respire anaerobically and accumulate:
A.
Ethanol
B.
Pyruvic acid only
C.
Carbon dioxide only
D.
Lactic acid
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ANSWER :
D. Lactic acid
16.
The energy released during respiration is mainly stored and used by the cell in the form of:
A.
ATP (adenosine triphosphate)
B.
Glucose
C.
Starch
D.
NADPH only
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ANSWER :
A. ATP (adenosine triphosphate)
17.
Compared with anaerobic respiration, aerobic respiration releases:
A.
A much larger amount of energy, as it completely oxidises glucose using oxygen
B.
No usable energy at all
C.
A smaller amount of energy than anaerobic respiration
D.
Exactly the same amount of energy
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ANSWER :
A. A much larger amount of energy, as it completely oxidises glucose using oxygen
18.
The loss of excess water from the aerial parts of a plant, mostly in the form of water vapour, is called:
A.
Photolysis
B.
Transpiration
C.
Guttation
D.
Translocation
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ANSWER :
B. Transpiration