During photosynthesis, which gas do plants release as a product?

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Multiple Choice

During photosynthesis, which gas do plants release as a product?

Explanation:
Oxygen is released as a byproduct of photosynthesis. In the light-dependent reactions, water molecules are split (photolysis) to supply electrons for the photosynthetic electron transport chain, and this splitting releases oxygen gas that leaves the plant. The overall process uses carbon dioxide and water to build glucose, so carbon dioxide is taken in rather than released. Nitrogen and argon aren’t involved in photosynthesis and aren’t produced by this reaction.

Oxygen is released as a byproduct of photosynthesis. In the light-dependent reactions, water molecules are split (photolysis) to supply electrons for the photosynthetic electron transport chain, and this splitting releases oxygen gas that leaves the plant. The overall process uses carbon dioxide and water to build glucose, so carbon dioxide is taken in rather than released. Nitrogen and argon aren’t involved in photosynthesis and aren’t produced by this reaction.

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