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NEET UG BIOLOGY MCQ: PHOTOSYNTHESIS IN HIGHER PLANTS
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Energy required for ATP synthesis in PS – II comes from?
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Correct option: A
Proton gradient
Option A (Proton gradient) is correct because the energy required for ATP synthesis in PS-II (and generally in chloroplasts) comes from the proton gradient established across the thylakoid membrane.
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I. When only PS I is functional, cyclic flow of electrons is not possible
II. The breakdown of the gradient provides enough to make the enzyme synthesis
III. The NADP reductase enzyme is located of the thylakoid membrane
IV. Proton gradient increases due to and Cyt . Law of limiting factors was given by PS-I is located on the