Which of the following combinations is required for chemiosmosis?

Options

1. Proton pump, electron gradient, ATP synthase
2. Proton pump, electron gradient, NADP synthase
3. Membrane, proton pump, proton gradient, ATP synthase
4. Membrane, proton pump, proton gradient, NADP synthase

Correct Answer

Membrane, proton pump, proton gradient, ATP synthase

Explanation

Chemiosmosis requires a membrane to maintain a proton gradient created by proton pumps; ATP synthase then uses this gradient to synthesize ATP.

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