A-LevelBiologyTransport in plants9700/12 · May/June 2020 · Q251 Mark
External factors change the rate of transpiration, which also affects the water potential gradient of cells in the leaf. Which combination is correct? [Figure 25.1]
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Aexternal factor changing the rate of transpiration: decreasing temperature, water potential gradient in the leaf: increases
Bexternal factor changing the rate of transpiration: decreasing wind speed, water potential gradient in the leaf: increases
Cexternal factor changing the rate of transpiration: increasing relative humidity, water potential gradient in the leaf: decreases
Dexternal factor changing the rate of transpiration: increasing sunlight, water potential gradient in the leaf: decreases
✓ Correct answer
C: external factor changing the rate of transpiration: increasing relative humidity, water potential gradient in the leaf: decreases
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