1. Complete the following passage by filling in the blanks The vascular tissues of flowering plants are and

which materials. transports water and from the root to the other parts of the plant. The walls of theprovide support for the plant. transports manufactured materials such as and amino acids from the to other parts of the plant.

2. The terms U to Z in the box are processes involved in the transport of

materials in plants. Use them to answer questions (a) to (d)

U: Transpirational pull V: Capillary action W: Osmosis

X: Diffusion Y: Active transport Z: Root pressure

(a) What forces are involved in the transport of water and ions up

the xylem vessels?

(b) Name the possible processes by which ions enter root hairs.

(c) How does water vapor pass out of the

leaves into the surrounding air?

(d) How does water enter root hairs?

3. Mach the following terms with their associated description.

A. Loss of water mainly

from stomata of leaves Transpiration pull

B. Continuous flow of water up

the plant Transpiration

C. Main force in pulling water

and mineral salts up the plant Companion cells

D. Assists sieve tubes in

transport of manufactured food Transpiration stream

4. Indicate whether the rate of transpiration increases or decreases in (a) to (d)

(a) When the temperature drops

(b) After a heavy shower

(c) When it becomes sunny

(d) When a strong breeze blows

5. Answer the following structured questions (a) and (b)

(a) Describe the difference between xylem vessels and sieve tubes in

the substances that they transport.

(b) Describe the difference between xylem vessels and sieve tubes in

the direction these substances are carried.