B4.9 Transport In Plants

Question 1

What is the movement of water in a plant called?

Answer 1

Transpiration stem

Question 2

What is translocation?

Answer 2

When the phloem transports the sugars made in photosynthesis in the leaf to areas of the plant that are used for storage or are still growing

Question 3

The roots have ______________________, which extend between the soil particles. These greatly increase the __________________ of the roots.

Answer 3

1. Tiny root hairs

2. Surface area

Question 4

In what two ways does water leave a plant. What is this process called?

Answer 4

Evaporation and diffusion

Process is called transpiration

Question 5

State 4 reasons why water is important for plants.

Answer 5

1. Needed for photosynthesis
2. When water evaporates, has a cooling effect on the plant
3. Water enters the cells by osmosis, making cells turgid/firm- to support the plant
4. Transports dissolved minerals

Question 6

How do plants control water loss?

Answer 6

Waxy cuticle on upper and lower surface of leaf- does not let water evaporate

Very few stomata on upper and lower surface of leaf.

Stomata closes at night (when photosynthesis is not occuring)- water loss is reduced.