Multiple choice

NADP can react with ________ to form NADPH.

  1. hydrogen

  2. oxygen

  3. carbon

  4. nitrogen
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A Correct answer
Explanation

NADP+ is reduced to NADPH by accepting a hydrogen atom (which consists of a proton, H+, and an electron, e-). The reaction is: NADP+ + H+ + 2e- → NADPH. This occurs during the light-dependent reactions of photosynthesis. Oxygen, carbon, and nitrogen are not involved in this specific reduction reaction.

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