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The chemiosmotic hypothesis of ATP synthesis was proposed by

(a) Hatch and Slack Your answer
(b) Peter Mitchell Correct
(c) F.F. Blackman Your answer
(d) Melvin Calvin Your answer

Your answer: Correct answer: (b)

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Explanation

Why (b) is correct

Peter Mitchell proposed the chemiosmotic hypothesis: ATP is made by ATP synthase using a proton gradient across a membrane.

Why the other options are wrong

(a) · your answer Hatch and Slack described the C₄ pathway.
(c) · your answer Blackman gave the law of limiting factors.
(d) · your answer Calvin worked out the path of carbon in photosynthesis.

NCERT point: Chemiosmosis explains ATP synthesis in both chloroplasts and mitochondria.

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