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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