LabBench Activity

Factors That Affect the Rate of Transpiration

Transpiration is affected by various conditions in the plant's environment. The following exercises help you think about some of these effects before you test them in your laboratory experiment.

1. Which condition would result in the higher rate of transpiration:
light or dark?

2. Which condition would result in the higher rate of transpiration:
humid environment or dry environment?

3. Which condition would result in the higher rate of transpiration:
breezy conditions or still air?

4. Which condition would result in the higher rate of transpiration:
hot environment or warm environment?