The cyclic series of reactions by which the carbon is fixed and reduced, resulting in the synthesis of sugar, is called:
Correct answer: B. Calvin cycle
- A. Cyclic phosphorylation
- B. Calvin cycle
- C. Non-cyclic phosphorylation
- D. Z-scheme
Explanation
The correct answer is the Calvin cycle. This cycle is the set of light-independent reactions where carbon dioxide is fixed and reduced to form glucose, using ATP and NADPH produced in the light-dependent reactions. Cyclic phosphorylation and non-cyclic phosphorylation are processes that occur during the light-dependent reactions, primarily involved in the production of ATP and NADPH, but they do not directly fix carbon or produce sugars. The Z-scheme is a model that describes the flow of electrons in the light-dependent reactions and does not include the carbon fixation process.
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About Bioenergetics
Cellular respiration explains how cells release energy from glucose through glycolysis, the link reaction, Krebs cycle and electron transport chain. It includes ATP production, substrate-level and oxidative phosphorylation, aerobic versus anaerobic respiration, and the roles of mitochondria, oxygen and fermentation in energy transfer.
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