Key Area 5- Transport systems (plants)

Question 1

What substances does the phloem transport?

Answer 1

Sugar

Question 2

What substances does the xylem transport?

Answer 2

Water and minerals

Question 3

Is the phloem dead or alive tissue?

Answer 3

Alive

Question 4

Is the xylem dead or alive tissue?

Answer 4

Dead

Question 5

What is the direction of transport in the xylem?

Answer 5

Up

Question 6

What is the direction of transport in the phloem?

Answer 6

Up and down

Question 7

What are the organs in a plant?

Answer 7

Roots, stem and leaf

Question 8

How do water and minerals enter a plant?

Answer 8

Through root hair cells

Question 9

What is the rate of transpiration effected by?

Answer 9

1) Wind speed- higher results in faster
2) Temperature- higher results in faster
3) Surface area- increase surface area results in more
4) Humidity- higher humidity slows it down

Question 10

What are the 4 stages of transpiration?

Answer 10

1) Water enters roots from the soil by osmosis
2) Water moves up the stem in the xylem
3) Water travels to the leaf in the leaf vein
4) Water evaporates and exits the leaf through the stomata

Question 11

What are the parts of the plant involved in water transport?

Answer 11

Root hair cell and xylem

Question 12

What do you use to measure transpiration rate?

Answer 12

Bubble potometer