In the light reaction of photosynthesis,oxyge | vedclass

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(A) During the light-dependent reaction of photosynthesis,the process of photolysis of water occurs. Water molecules $(H_2O)$ are split into protons $

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Water

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(A) During the light-dependent reaction of photosynthesis,the process of photolysis of water occurs. Water molecules $(H_2O)$ are split into protons $(H^+)$,electrons $(e^-)$,and oxygen $(O_2)$ in the presence of light and the oxygen-evolving complex associated with Photosystem $II$. This oxygen is released as a byproduct into the atmosphere. Therefore,the oxygen released during photosynthesis originates from water,not from $CO_2$.

In the light reaction of photosynthesis,oxygen is released from:

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