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The photographs show an open and a closed stomate on a leaf surface - HSC - SSCE Biology - Question 13 - 2021 - Paper 1
Question 13
The photographs show an open and a closed stomate on a leaf surface. When open, stomates allow water vapour to pass out of the leaf. Width of opening Regulating st... show full transcript
Worked Solution & Example Answer:The photographs show an open and a closed stomate on a leaf surface - HSC - SSCE Biology - Question 13 - 2021 - Paper 1
Step 1
Which of the following graphs best illustrates this homeostatic mechanism?
Answer
The best illustration of the homeostatic mechanism for stomatal regulation in relation to soil water content is Graph A. This is because as the soil water content increases, the width of the stomatal opening also increases, allowing more water vapor to escape. This response is essential for maintaining the plant’s water balance.