Final answer:
Chemiosmosis occurs in the inner mitochondrial membrane cristae during cellular respiration.
Explanation:
Chemiosmosis occurs in the cristae of the inner mitochondrial membrane. This process involves the movement of protons across the inner membrane, generating a proton gradient. As protons flow back into the matrix through ATP synthase, ATP is produced, which is a key step in cellular respiration.
Electrons from NADH and FADH2 move through the electron transport chain, embedded in the inner membrane, leading to the pumping of protons into the intermembrane space. This establishes the proton motive force required for chemiosmosis to produce ATP.
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