Biology for IGCSE & O level - Transport In Plants (Section 3 - No. 7)
What happens when the guard cells take in water?
The stoma closes
The stoma opens
The leaf curls up
The root hairs absorb more minerals
Explanation
Guard cells are responsible for opening and closing the stomata. When guard cells take up water, they become turgid and the stoma opens to allow gas exchange.
Comments (0)
