Question

How are ATPS and NADPH made
(chemiosmotic photo phosphorylation) in the light dependent reactions of photosynthesis

Answer 1

Light energy splits water and extracts electrons in photosystem II (PSII); then electrons are moved from PSII to cytochrome b6f to photosystem I (PSI) and reduce in energy.
Electrons are re-energized in PSI and those high energy electrons reduce NADP+ to NADPH.
In non-cyclic photophosphorylation, cytochrome b6f uses the energy of electrons from PSII to pump hydrogen ions from the lumen to the stroma; this energy allows ATP synthase to attach a third phosphate group to ADP, which forms ATP.
In cyclic photophosphorylation, cytochrome b6f uses the energy of electrons from both PSII and PSI to create more ATP and to stop the production of NADPH, maintaining the right proportions of NADPH and ATP

Answer 2

@MTM but in chemiosmotic photo phosphorylation

Answer 3

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