Where does the oxygen released during photosynthesis come from?

Understand the Problem

The question is asking about the origins of oxygen produced during the process of photosynthesis in plants. It seeks to understand whether the oxygen comes from carbon dioxide, water, or another source during this biological process.

Answer

water

The final answer is water

Answer for screen readers

The final answer is water

More Information

The oxygen released during photosynthesis comes from the splitting (photolysis) of water molecules. This was experimentally proven by Cornelius van Niel.

Tips

A common mistake is thinking that the oxygen comes from carbon dioxide, but it actually comes from water.

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