BI-881
Factors affecting transpiration
Biology · Secondary 3 · Medium · Factors affecting transpiration
In a potometer experiment, a leafy shoot is first placed in still air, then in front of a moving fan. How does the fan affect the rate of transpiration?
- It decreases because stomata close in moving air.
- It decreases because leaf temperature falls.
- It increases because the diffusion gradient for water vapour becomes steeper.
- It is unchanged because wind does not affect water loss.
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