Exploring the Mechanisms of Photosynthesis

What process replenishes the electrons lost by chlorophyll in photosystem II?

• Photolysis of water

• Reduction of NADP

• Absorption of light

• Oxidation of glucose

What happens to the electrons excited by light in photosystem II?

• They produce ATP directly

• They split water molecules

• They reduce NADP to NADPH

• They are transferred to the electron transport chain

What is the primary function of the light-dependent reactions in photosynthesis?

• To absorb water molecules

• To produce glucose directly

• To convert carbon dioxide to oxygen

• To generate ATP and NADPH

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

• To capture light energy

• To produce oxygen

• To reduce NADP

• To phosphorylate ADP to ATP

Which molecule acts as the final electron acceptor in the light-dependent reactions?

• Carbon dioxide

• Oxygen

• ATP

• NADPH

Which enzyme is responsible for carbon fixation in the Calvin Cycle?

• ATP synthase

• RuBisCo

• NADP reductase

• Plastoquinone

What is the main purpose of the Calvin Cycle in photosynthesis?

• To split water molecules

• To produce ATP

• To create glucose from carbon dioxide

• To generate oxygen as a byproduct

How many molecules of carbon dioxide are used to produce one molecule of glucose in the Calvin Cycle?

• Six

• Three

• Twelve

• Eighteen

What is the main product of the Calvin Cycle that is used by the plant?

• Triose phosphate

• ATP

• Oxygen

• NADPH

Which compound is regenerated in the Calvin Cycle to continue the process?

• Oxygen

• Glucose

• ATP

• RuBP