Plant Transport Test-Grade 9

Sieve plates are present in the Sieve tubes of Phloem vessels in plants. What function do they serve in the transport of substances?

Which of the following does NOT affect rate of transpiration?

• Water available in the soil

• Temperature of the atmosphere around the plant

• Amount of sunlight present

• Amount of sucrose produced by the plant

What do the guard cells do?

• Control active transport

• Control nutrients moving into the cell

• Controls the rate of gases entering leaf

• Controls the about of sunlight entering the leaves

Phloem sieve tubes are considered living due the presence of this specialized structure. Name the structure in the space provided.

High concentration of______ in the soil leads to the movement of _______ into the roots hairs of plants by the process of Osmosis.

• Solutes, water

• Water, solutes

• Water, water

• Water, ions

Where does sugar transport begin?

• Phloem

• Leaves

• Root hairs

• Vascular bundles

Students are instructed to place leafy celery stalks into color water in a beaker overnight. The following day, the students observed the color of the celery leaves changed from green to red. The students cut across the edge of the celery and observed the small tube openings along the edge are also red.

Using the appropriate terms, how do these work together to make the movement of the liquid possible?

After water enters the plant, water travels from the root hair cells, through the _______ to the xylem vessels.

• phloem

• cortex cells

• mesophyll cells

• root hair cells

An example of adhesion is...

• Water molecules sticking to each other

• Water molecules sticking to the walls of a straw

• Magnets sticking to a metal wall

• Gravity pulling water down

How do mineral ions enter a plant?

• By osmosis with water molecules in root hair cells

• By active transport only in root hair cells

• Through the stomata in the epidermis of the root

• Through the roots by diffusion