What is cyclic photophosphorylation in photosynthesis?

What is cyclic photophosphorylation in photosynthesis?
  1. The synthesis of ATP from ADP and inorganic phosphate in the presence of light
  2. The transfer of electrons from photosystem II to photosystem I
  3. The synthesis of ATP only
  4. The reduction of NADP⁺ to NADPH + H⁺

Solution

During cyclic photophosphorylation, the excited electron does not pass on to NADP⁺ but is cycled back to the PS I complex through the electron transport chain. This results only in the synthesis of ATP, but not of NADPH + H⁺.

Asked in: NCERT

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