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+ gains a hydrogen ion (H+) and two electrons to become NADPH, the reduced form that carries energy to the Calvin cycle. This reduction occurs during the light-dependent reactions of photosynthesis when water molecules are split.

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