What is the role of NADP in photosynthesis?

• A. Accepts electrons
• B. Hydrogen carrier
• C. For the dark stage
• D. Glucose formation

Answer: (A)

NADP’s function is to act as the final electron acceptor in the light-dependent reactions. It accepts electrons (and a proton) to become NADPH, which carries the reducing power to the Calvin cycle. There, NADPH donates those electrons to help reduce carbon dioxide into carbohydrates, ultimately contributing to glucose formation. It isn’t a separate “dark-stage” participant, and while NADPH is used in sugar synthesis, NADP itself does not directly form glucose.