BI-758
Factors affecting transpiration
Biology · Secondary 3 · Hard · Factors affecting transpiration
A student measures the rate of transpiration of a plant at different wind speeds while keeping light intensity and humidity constant. She finds that the rate increases as wind speed increases. Which statement best explains this result?
- Wind closes stomata so more water is lost.
- Wind increases leaf temperature so less water evaporates.
- Wind removes water vapour near the leaf, increasing the diffusion gradient.
- Wind increases humidity around the leaf, reducing water loss.
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