Bioenergetics Class 12 Biology Book MCQs


FSC Biology MCQs

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[question]
Which of the following is a chemical link between catabolism and anabolism?
A. AMP B. ADP
C. ATP D. All of these
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[explanation]c[/explanation]
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[question]
C6H12O6 + 6O2 ? 6CO2 + 6H20 + ENERGY represents:
A. Photosynthesis B. Aerobic respiration
C. Anaerobic respiration D. Respiration
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[explanation]b[/explanation]
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[question]
Which of the following is a compensation point:
A. Leaves respire and utilize O2 and release CO2. B. Photosynthesis and respiration occur at same rate. So there is not net exchange of gases between atmosphere and plants.
C. Rate of photosynthesis increases, so do the O2 production, with a net release of oxygen coupled with the uptake of CO2. D. Rate of respiration becomes more than rate of photosynthesis.
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[explanation]b[/explanation]
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[question]
Of the following which one is not an energy releasing process?
A. Glycolysis B. Respiration
C. Photosynthesis D. Kreb’s cycle
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[explanation]c[/explanation]
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[question]
Deficiency of ________ causes yellowing in plants
A. Magnesium B. Iron
C. Chlorine D. Oxygen
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[explanation]A[/explanation]
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[question]
Molecular formula of chlorophyll b is
A. C55 H10 O4 N6 Mg B. C55 H70 O6 N5 Mg
C. C55 H71 O6 N4 Mg D. C55 H70 O6 N4 Mg
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[explanation]b[/explanation]
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[question]
PS I has chlorophyll a molecule which absorbs maximum light of _____ nm.
A. 600 B. 650
C. 680 D. 700
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[explanation]d[/explanation]
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[question]
NADPH2 provides
A. assimilatory power B. chemical energy
C. energized electrons D. All of these
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[explanation]d[/explanation]
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[question]
Complete breakdown of glucose molecule takes place in which of the following:
A. Alcoholic fermentation B. Lactic acid fermentation
C. Aerobic respiration. D. All of these
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[explanation]c[/explanation]
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