During cyclic photophosphorylation, ATP is generated by the:
Correct answer: A. Coupling of ETC by chemiosmosis
- A. Coupling of ETC by chemiosmosis
- B. Involvement of chemiosmosis
- C. Involvement of ETC
- D. Oxidative phosphorylation
Explanation
In both cyclic and non-cyclic photophosphorylation, the mechanism for ATP synthesis is chemiosmosis, the process that uses membranes to couple redox reactions to ATP production.
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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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