Chemiosmotic theory of ATP synthesis in the chloroplast and mitochondria is based on

(a) membrane potential

(b) accumulation of Na+ ions 

(c) accumulation of K+ions 

(d) proton gradient 

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1 Answers

Correct option (d) proton gradient 

Explanation:

Chemiosmotic hypothesis for oxidative phosphorylation ATP synthesis) was proposed by Peter Mitchell in 1961, for this he was awarded Nobel Prize in. 1978. This theory  is based on proton gradient. 

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