Question

multiple select question
select all that apply
select all of the following that are products of the light-dependent reactions.

□ glucose

□ carbon dioxide

□ nadph

□ oxygen

□ atp

□ water

Explanation:

1. Recall the process of light - dependent reactions in photosynthesis: In the light - dependent reactions, light energy is used to split water ($H_2O$) into oxygen ($O_2$), protons ($H^+$), and electrons. The electrons are used to generate ATP (adenosine triphosphate) through photophosphorylation and to reduce $NADP^+$ to $NADPH$.

• Glucose is a product of the light - independent (Calvin cycle) reactions, not the light - dependent reactions.
• Carbon dioxide is a reactant in the light - independent reactions (used in the Calvin cycle to build glucose), not a product of light - dependent reactions.
• Water is a reactant in the light - dependent reactions (it is split), not a product.
• NADPH: Electrons from the splitting of water are used to reduce $NADP^+$ to $NADPH$, so NADPH is a product of light - dependent reactions.
• Oxygen: When water is split during light - dependent reactions, oxygen is released as a by - product.
• ATP: Light energy is used to generate ATP through photophosphorylation in the light - dependent reactions.

Answer:

C. NADPH, D. oxygen, E. ATP