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NADPH2 is generated through

  • (a) photosystem II Your answer
  • (b) anaerobic respiration Your answer
  • (c) photosystem I Correct
  • (d) glycolysis Your answer
Your answer: Correct answer: (c)
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Explanation

Why (c) is correct

NADPH is formed at the end of non-cyclic electron transport. Electrons from PS I pass to ferredoxin and then reduce NADP+ to NADPH with the help of NADP reductase.

Why the other options are wrong

  • (a) · your answer PS II passes its electrons to the electron transport chain and PS I; it does not reduce NADP+ itself.
  • (b) · your answer Anaerobic respiration does not make NADPH.
  • (d) · your answer Glycolysis makes NADH, not NADPH.
NCERT point: Electrons from water reach NADP+ through PS II, the electron transport chain and PS I (Z scheme).
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