Question

Which of the following combinations is required for chemiosmosis?

• A. Membrane, proton pump, proton gradient, NADP synthase
• B. Proton pump, electron gradient, ATP synthase
• C. Proton pump, electron gradient, NADP synthase
• D. Membrane, proton pump, proton gradient, ATP synthase

Answer 1

Answer: (D)

Membrane, proton pump, proton gradient, ATP synthase

Answer 2

Chemiosmosis is a process that occurs in the inner mitochondrial membrane during cellular respiration and in the thylakoid membrane during photosynthesis. It involves the movement of protons (H+ ions) across a membrane through a proton pump (such as the electron transport chain) to establish a proton gradient. This gradient is then utilized by ATP synthase to generate ATP from ADP and inorganic phosphate.

Therefore, The correct option is (D): Membrane, proton pump, proton gradient, ATP synthase