Transpiration Flashcards
What is transpiration?
This process explains how plants ‘suck’ water out of the soil. As water is lost through the stomata of the plants’ leaves a sort of vacuum is
created in the xylem vessels. This draws water up from the roots of the
plant.
Transpiration happens much more quickly in…
hot, dry and windy conditions.
What does the cuticle do?
It prevents too much water loss from the leaves.
Water lost through
transpiration is mainly lost through the?
Stomata.
What type of cells control the size of the stomata and therefore regulate the amount of water lost by transpiration?
Guard Cells.
If plants are losing water faster than they are gaining it, what will happen?
The Stomata Close. Without this happening, the plants will wilt – and may die.
How do we know plants are sensitive?
Their leaves grow towards the light. This effect is called phototropism
