Transpiration

Question 1

What is transportation?

Answer 1

Loss of wAter vapour from the leaves of a plant through the stomata

Question 2

How does the rate of photosynthesis affect the rate of transportation ?

Answer 2

During photosynthesis there will be more stomata open and more transpiration

Question 3

How does temperature affect the rate of transportation ?

Answer 3

The heigher the temp, the more energy the particles have and so there is faster transpiration, evaporation, diffusion

Question 4

How does humidity affect the rate of transportation ?

Answer 4

The less humidity in the hair, there is less of a concentration gradient and so more transpiration

Question 5

How does wind speed affect the rate of transportation ?

Answer 5

When the wind is faster it blows away the moist air from the leaves and so there is more transpiration

Question 6

What is used to measure the transpiration?

Answer 6

Potometre

Question 7

How have plants adapted to prevent water loss? 4 points

Answer 7

• A waxy cuticle
• Stomata on underside of leaf
• plants can close their stomata
• wilting to reduce surface area

Question 8

Is the phloem in the inside or outside of the diagram?

Answer 8

Outside

Question 9

Describe the phloem

Answer 9

• living cels

- pathways formed through the plant

Question 10

Describe The xylem

Answer 10

• dead cells

- form tubes throughout plant

Question 11

What does the phloem carry

Answer 11

Sugars from laces to flowers

Question 12

What does the xylem carry

Answer 12

Water and mineral ions