Chemiosmotic Hypothesis: Proton Gradient -
- The chemiosmotic hypothesis has been put forward to explain the mechanism of ATP synthesis.
- ATP synthesis is linked to the development of a proton gradient across a membrane.
- During photosynthesis, these membranes are thylakoid membranes.
- The proton accumulation is towards the inside of the membrane, i.e., in the lumen of granum.
- Chemiosmotic hypothesis was proposed by Peter Mitchell in
. Hence, the correct answer is option d
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