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  4. In photosynthesis, light reaction includes:

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Q. In photosynthesis, light reaction includes:

NTA AbhyasNTA Abhyas 2022

Solution:

Photophosphorylation is the synthesis of ATP from ADP and inorganic phosphate in the presence of light. When two photosystems work in a series, first PS II and then PS I, a process called noncyclic photophosphorylation occurs. When only PS I is functional, the electron is circulated within the photosystem and phosphorylation occurs due to cyclic flow of electrons, it is cyclic photophosphorylation.