What are NADP+ and NADPH, and what roles do they play in photosynthesis?

• A. NADP+ is the oxidized carrier; NADPH is the reduced form that carries electrons to the Calvin cycle to help form sugars.
• B. NADP+ is the reduced form; NADPH is the oxidized form that carries electrons to the mitochondrial electron transport chain.
• C. NADP+ and NADPH are pigments in leaves affecting color.
• D. NADP+ is a sugar molecule; NADPH is a protein.

Answer: (A)