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Multiple Choice
How is ATP produced during the process of photosynthesis?
A
By photophosphorylation in the thylakoid membrane
B
Through oxidative phosphorylation in the mitochondria
C
Through the Calvin cycle in the stroma
D
Via glycolysis in the cytoplasm
Verified step by step guidance
1
Understand that photosynthesis occurs in the chloroplasts of plant cells and involves two main stages: the light-dependent reactions and the Calvin cycle.
Recognize that ATP production during photosynthesis occurs in the light-dependent reactions, which take place in the thylakoid membranes of the chloroplasts.
Learn that during the light-dependent reactions, light energy is captured by chlorophyll and used to drive the transfer of electrons and protons, creating a proton gradient across the thylakoid membrane.
Identify that the proton gradient is used by ATP synthase, an enzyme located in the thylakoid membrane, to synthesize ATP from ADP and inorganic phosphate. This process is known as photophosphorylation.
Note that the Calvin cycle, which occurs in the stroma of the chloroplast, uses ATP and NADPH produced in the light-dependent reactions to fix carbon dioxide into glucose, but it does not produce ATP itself.