Plants produce oxygen when they photosynthesize, which comes from the splitting of the water during the light reaction.
During photosynthesis, in the light reaction following reactions takes place:
- The light hits chlorophyll cells in photosystem II.
- They get the energy that moves from cell to cell until the P680 pair of chlorophyll molecules absorb it.
- An electron in this pair becomes excited due to extra energy, leaves the molecule reaches to the primary electron acceptor.
- Meanwhile, there's an enzyme that's splitting water molecules to give electrons, hydrogen, and oxygen.
Plants produce oxygen when they photosynthesize, which comes from the splitting of the water during the light reaction.
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