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In photosynthesis, the light-dependent reactions take place on the thylakoid membranes. The inside of the thylakoid membrane is called the lumen, and outside the thylakoid membrane is the stroma, where the light-independent reactions take place.The thylakoid membrane contains some integral membrane protein complexes that catalyze the light reactions.There are four major protein complexes in the thylakoid membrane: Photosystem II (PSII), Cytochrome b6f complex, Photosystem I (PSI), and ATP synthase.he thylakoid membrane contains some integral membrane protein complexes that catalyze the light reactions. There are four major protein complexes in the thylakoid membrane: Photosystem II (PSII), Cytochrome b6f complex, Photosystem I (PSI), and ATP synthase.
How are the dark reactions that occur in plants dependent on the light reactions? a. The chemical energy used in the dark reactions is produced in the light reactions. b. The light reactions produce the oxygen necessary for the dark reactions to proceed. c. Light energy absorbed during the light reactions is used directly in the dark reactions. d. During the light reactions, carbon dioxide is converted to sugars, which are used during the dark reactions.