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Explaining the Effects of Temperature, Wind Speed & Humidity: Extended (CIE IGCSE Biology: Co-ordinated Sciences (Double Award))
Revision Note
Explaining the Effects of Temperature, Wind Speed & Humidity: Extended
Extended Tier Only
- Wind speed, humidity and temperature all have an effect on the rate at which transpiration occurs
- The table below explains how these factors affect the rate of transpiration when they are all high; the opposite effect would be observed if they were low
Transpiration Rate Factors Table
Wilting: Extended
Extended Tier Only
- If more water evaporates from the leaves of a plant than is available in the soil to move into the root by osmosis, then wilting will occur
- This is when all the cells of the plant are not full of water, so the strength of the cell walls cannot support the plant and it starts to collapse
A wilted plant cannot support itself and starts to collapse
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