What are the two main sets of reactions in photosynthesis?

• Electron transport chain and Krebs Cycle

• Light-dependent reactions and Calvin Cycle

• Light-independent reactions and Krebs Cycle

• Glycolysis and Calvin Cycle

What is the role of chloroplasts in photosynthesis?

• They contain pigments that absorb light.

• They store glucose for later use.

• They absorb water from the soil.

• They produce oxygen through respiration.

What happens when Photosystem II absorbs light?

• NADPH is formed immediately.

• Water is produced as a byproduct.

• Electrons in chlorophyll gain energy and move to the electron transport chain.

• ATP is directly synthesized.

What is the function of ATP synthase in the light-dependent reactions?

• It allows hydrogen ions to diffuse and produces ATP.

• It pumps hydrogen ions into the thylakoid.

• It absorbs light energy.

• It splits water molecules.

What is NADPH and what is its role in photosynthesis?

• An enzyme that splits water.

• An electron carrier that transports electrons and hydrogen to the Calvin Cycle.

• A molecule that stores glucose.

• A pigment that absorbs light.