9. Photosynthesis

Describe the primary function of the light reactions of photosynthesis.

Where do the electrons that are excited in photosystem II come from?

During the light reactions, photosystem I functions to_________, and photosystem II functions to __________.

What is the correct order of steps of the light reactions of Photosynthesis?

Which of the following sequences correctly represents the flow of electrons during photosynthesis?

a. NADPH → O₂ → CO₂

b. H₂O → NADPH → Calvin cycle

c. H₂O → photosystem I → photosystem II

d. NADPH → electron transport chain → O₂

When light strikes chlorophyll molecules in the reaction-center complex, they lose electrons, which are ultimately replaced by

a. Splitting water

b. Oxidizing NADPH

c. The primary electron acceptor

d. The electron transport chain

Which of the following does not occur during the light reactions of photosynthesis?

a. Water is released.

b. Electrons from chlorophyll are moved to a higher-energy state by light.

c. ATP is produced.

d. NADPH is produced to carry electrons to the light-independent reactions.

e. Oxygen is produced when water is split.