Question

how do guard cells regulate in opening and closing of the stomatal pore​

Answer 1

When guard cells are turgid or filled with water, the stomatal pore is open and when they are devoid of water, the stomatal pore is closed.

this is how guard cells regulate in opening and closing of the stomatal pore.

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Answer 2

Answer:

Explanation:

When water enters guard cells it swells up and stomata opens and when guard cell lose water the stomata closes