Formation of ATP during cyclic electron flow is called:
Correct answer: A. Cyclic phosphorylation
- A. Cyclic phosphorylation
- B. Non-cyclic photophosphorylation
- C. Oxidative phosphorylation
- D. Z-scheme
Explanation
The correct answer is cyclic photophosphorylation. In this process, electrons are cycled back to Photosystem I after passing through an electron transport chain, which leads to the synthesis of ATP. This is distinct from non-cyclic photophosphorylation, where electrons move from water to NADP⁺, producing NADPH and oxygen. Oxidative phosphorylation is unrelated to photosynthesis and occurs in cellular respiration. The Z-scheme describes the electron flow in non-cyclic photophosphorylation, not cyclic.
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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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The formation of ATP during non-cyclic electron flow is called
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