Transpiration & Xylem
Transpiration is the constant flow of water through a plant, driven by evaporation from the leaves.
How does humidity affect the rate of transpiration?
What is Transpiration & Xylem?
"Transpiration is the loss of water vapour from the leaves of a plant through the stomata by evaporation and diffusion."
What is transpiration?
Which set of conditions would usually increase the rate of transpiration?
Why does high humidity reduce transpiration?
What is translocation in plants?
The Transpiration Stream
Xylem carries water and minerals from the roots. Phloem carries dissolved sugars (translocation).
Transpiration rate is increased by high temperature, low humidity, and high wind speed.
Guard cells close the stomata at night or in dry conditions to conserve water.
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