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Question
If the stomatal pore is open, it indicates which situation from the following?
Options
The guard cells have shrunk.
The water comes out of the guard cells.
Large amount of water is lost through stomata.
The guard cells have swelled due to inflow of water.
MCQ
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Solution
The guard cells have swelled due to inflow of water.
Explanation:
The opening of the stomatal pore occurs when water flows into the guard cells, causing them to become turgid and swell. This swelling forces the guard cells to curve outward, which pulls the pore open for gas exchange.
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