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What is Plant CO2 Exchange in Light vs. Dark about?
When plants are exposed to light, they absorb more carbon dioxide through photosynthesis than they release through respiration, changing the indicator solution from orange to purple. In darkness, respiration releases more carbon dioxide than photosynthesis can absorb, changing the indicator from orange to yellow. The control tube without a leaf remained orange, showing atmospheric carbon dioxide levels.
- Author
- Wynn Toh
- Language
- EN