2021HSCMultiple choice

Q13

1 mark

Question

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. Regulating stomates is a mechanism by which plants maintain water balance. Which of the following graphs best illustrates this homeostatic mechanism?

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Syllabus alignment

Module 8 · Non-infectious Disease and Disorders

HomeostasisInvestigate behavioural, structural, physiological, hormonal, neural and plant water-balance mechanisms.

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