Photo AI
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 relationship between soil water content and the width of stomata opening is crucial for understanding how plants maintain water balance. As soil water content increases, stomates generally open wider to facilitate transpiration and gas exchange. Therefore, graph A, which shows a positive correlation between soil water content and stomatal opening, best illustrates this homeostatic mechanism.