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The chemiosmotic hypothesis, proposed by British biochemist Peter Mitchell (1920–22), describes ATP synthesis in the mitochondrial electron transport chain.

1. True
2. False
3. Both true and false
4. None of these

Correct answer: True

Solution

The chemiosmotic theory, explaining ATP synthesis via a proton gradient in the mitochondrial electron transport chain, was indeed proposed by Peter Mitchell, making the statement true.

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