Measuring Transpiration
Biology: AQA GCSE Higher, topic 2.5.5
Rate of Transpiration
When measuring the rate of transpiration, the speed of the bubble's movement measures the rate of water uptake.
Test yourself on Measuring Transpiration
Why does the air bubble in a potometer move during a transpiration experiment?
What does a potometer measure?
Why is the reading from a potometer only an estimate of the true rate of transpiration?
What would happen to the air bubble in a potometer if a plant's rate of transpiration increased?
How does the water uptake measured by a potometer compare with the actual rate of transpiration?