Transpiration

Question 1

What is transpiration?

Answer 1

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.

Question 2

Transpiration happens much more quickly in…

Answer 2

hot, dry and windy conditions.

Question 3

What does the cuticle do?

Answer 3

It prevents too much water loss from the leaves.

Question 4

Water lost through
transpiration is mainly lost through the?

Answer 4

Stomata.

Question 5

What type of cells control the size of the stomata and therefore regulate the amount of water lost by transpiration?

Answer 5

Guard Cells.

Question 6

If plants are losing water faster than they are gaining it, what will happen?

Answer 6

The Stomata Close. Without this happening, the plants will wilt – and may die.

Question 7

How do we know plants are sensitive?

Answer 7

Their leaves grow towards the light. This effect is called phototropism