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Which statement about photophosphorylation is correct?

  • (a) It needs O2 as the final electron acceptor. Your answer
  • (b) It forms NADPH only, without forming any ATP. Your answer
  • (c) It makes ATP from ADP and Pi using light energy. Correct
  • (d) It takes place in the inner mitochondrial membrane. Your answer
Your answer: Correct answer: (c)
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Explanation

Why (c) is correct

Photophosphorylation is the synthesis of ATP from ADP and inorganic phosphate (Pi) using light energy, in the chloroplast.

Why the other options are wrong

  • (a) · your answer O2 is the final acceptor in respiration, not photophosphorylation.
  • (b) · your answer Photophosphorylation makes ATP (non-cyclic flow also makes NADPH).
  • (d) · your answer It takes place in the thylakoid membrane of chloroplasts.
NCERT point: It can be cyclic or non-cyclic.
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