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Explain how the light reaction of photosynthesis, ATP synthesis is a chemiosmotic phenomenon.
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ATP is a chemiosmotic process. This indicates that the movement of ions occurs across a semi-permeable membrane and down an electronic gradient. During the light reaction of photosynthesis, ATP is synthesised. During ATP synthesis, the movement of ions occurs across the semi-permeable membrane of the thylakoid. The proton pump pushes the ions with the help of a proton gradient. This further synthesis the ATP molecules. Since this process is a chemical mediated phenomenon, the ATP synthesis is often termed as a chemiosmotic phenomenon.
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