Year 9 Plants and water

Identify the cell in the image

• Red blood cell

• Xylem cell

• Palisade cell

• Root hair cell

State the term for the process that involves the loss of water vapour from the leaves of a plant

(a)  

What type of cell controls the opening and closing of stomata?

• Root hair cells

• Guard cells

• Spongy mesophyll cells

• White blood cells

State the tissue (vessels) that transport water and dissolved mineral salts in a plant

(a)  

When will the rate of transpiration by highest?

• A cold and dry day

• A warm and dry day

• A warm and windy day

• A warm and still day

State the substance found in the walls of xylem vessels that strengthens them and prevents them collapsing inwards

(a)  

The leaf of a plant is an example of which of the following?

• Organ

• Tissue

• Organ system

• Cell

Identify the process that occurs in the leaves of plants allowing them to produce sugars

(a)  

In an experiment to the effect of temperature on the rate of transpiration what type of variable is temperature?

• Dependent

• Controlled

• Independent

• A control

A plant adapted for survival in a very arid (dry) environment is likely to have which adaptation?

• Stomata that stay open all day

• Very few stomata

• Many leaves

• No way of storing water