Quiz 3.3: Light-Dependent Reactions and the Calvin Cycle

Where do the light-dependent reactions of photosynthesis take place?

• Cell membrane
• Thylakoid membranes
• Mitochondria
• Cell wall

What is the primary function of the photosystems in the light dependent reactions?

• To create glucose
• To produce CO2
• To absorb light energy
• To produce ATP

Which of the following is NOT an output of the light-dependent reactions?

• ATP
• NADPH
• Oxygen
• Glucose

What happens during water splitting in the light-dependent reactions?

• ATP is produced
• NADPH is formed
• Glucose is created
• Oxygen is released

What is the main function of ATP synthase?

• To split water molecules
• To absorb light energy
• To use proton gradient to make ATP
• To transport electrons

What molecule serves as the electron carrier in the light-dependent reactions? This is the final electron acceptor.

• ATP (becomes ADP)
• NADP+ (becomes NADPH)
• Oxygen (becomes 02)
• Water (H20)

What role does water play in the light-dependent reactions?

• It provides carbon atoms
• It is split to provide electrons and protons
• It directly creates glucose
• It absorbs light energy

What happens to the electrons after they are excited in PSII?

• They are immediately used to make glucose
• They move through the electron transport chain
• They are converted to heat
• They form NADP+ directly

Where does the Calvin Cycle take place?

• Thylakoid membrane
• Cell wall
• Stroma
• Mitochondria

What is the primary purpose of the Calvin Cycle?

• To produce oxygen
• To create G3P (glucose) from carbon dioxide
• To split water molecules
• To absorb light energy