BI-2127
Factors affecting transpiration
Biology · Secondary 4 · Medium · Factors affecting transpiration
In an experiment on transpiration, a potted plant is placed in front of a fan while all other conditions are kept constant. Compared to before the fan was switched on, what happens to the rate of transpiration and why?
- Decreases, because stomata close in moving air.
- Decreases, because humidity around the leaf increases.
- Increases, because air movement maintains a steep water vapour gradient.
- Remains the same, because wind does not affect transpiration.
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