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The mechanism of ATP formation both in chloroplast and mitochondria is explained by

1. relay pump theory of Godlewski
2. Munch’s pressure/mass flow model
3. chemiosmotic theory of Mitchell
4. Cholondy-Went’s Model

Correct answer: chemiosmotic theory of Mitchell

Solution

ATP formation in both chloroplasts and mitochondria is explained by the chemiosmotic theory, which states that electron transport creates a proton gradient across a membrane. The return flow of protons through ATP synthase powers ATP production.

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