AP BIOLOGY

Detailed explanation-1: -ATP and NADPH are energy storage and electron carrier/donor molecule. Both ATP and NADPH are used in the next stage of photosynthesis.

Detailed explanation-2: -NADPH carries high-energy electrons to the electron transport chain in photosynthesis.

Detailed explanation-3: -NADP+ functions alongside many enzymes to provide energy to the many reactions in a cell. NADP+ is the used form of NADPH, and must be reduced with more electrons and a hydrogen. This is typically done during photosynthesis in plants, or as part of sugar digestion in animals.

Detailed explanation-4: -In the light-dependent reactions, energy absorbed by sunlight is stored by two types of energy-carrier molecules: ATP and NADPH. The energy that these molecules carry is stored in a bond that holds a single atom to the molecule. For ATP, it is a phosphate atom, and for NADPH, it is a hydrogen atom.

Detailed explanation-5: -In oxygenic photosynthesis, NADP+ acts as the final acceptor of the photosynthetic electron transport chain and receives electrons via the thylakoid membrane complex photosystem I (PSI) to synthesize NAPDH by the enzyme ferredoxin:NADP+ oxidoreductase.