Biology for IGCSE & O level - Plant Nutrition (Section 4 - No. 15)
What are the functions of the guard cells?
To regulate the opening and closing of stomata.
To absorb water through osmosis
To support the leaf
To transport water to the mesophyll cells.
Explanation
Guard cells open and close the stomata and also take in water by osmosis causing them to bend, thereby opening the stomata.
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