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Plants & Photosynthesis
How do plants release oxygen during photosynthesis?
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1 Reply
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During photosynthesis, plants release oxygen as a byproduct. Here’s how the process works:
Carbon dioxide (CO2) absorption:
Plants absorb carbon dioxide from the air through their stomata, which are small pores on the leaves.
Light absorption:
The chloroplasts in plant cells contain chlorophyll, a green pigment that absorbs sunlight, particularly the red and blue wavelengths.
Light-dependent reactions:
The absorbed light energy is used to split water (H2O) molecules in a process called photolysis.
This splitting of water molecules releases electrons, protons, and oxygen as byproducts.
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