Biology
Which one of the following helps in the opening of stomata:
- Cobalt ions
- Potassium ions
- Magnesium ions
- Aluminium ions
Photosynthesis
ICSE 2024
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Answer
Potassium ions
Reason — During sunlight K⁺ ions rush into the guard cells. It is followed by osmosis. The guard cells then swell, and the stomata opens.
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