Y7: Movement of Substances

• Biology
• Lower Secondary (Key Stage 3)

Y7: Movement of Substances

Nucleus

Chloroplast

Mitochondria

Cytoplasm

Cell membrane

Cell wall

Vacuole

Label the diagram and place ONE arrow to show the direction of diffusion.

More concentrated

Less concentrated

Label the diagram and place ONE arrow to show the direction of diffusion.

More concentrated

Less concentrated

Label the diagram and place ONE arrow to show the direction of diffusion.

More concentrated

Less concentrated

Label the diagram and place ONE arrow to show the direction of diffusion.

More concentrated

Less concentrated

Which way will the particles diffuse?

Molecules are able to diffuse because they are constantly moving around.

1. True
2. False

In which state(s) of matter can diffusion occur?

1. Solids
2. Liquids
3. Gases
4. Liquids and gases

Diffusion is the movement of molecules from an area of low concentration to an area of high concentration.

1. True
2. False

Diffusion requires energy.

1. True
2. False

Particles diffuse until they are evenly spaced apart.

1. True
2. False

Why does diffusion not happen in solids?

Oxygen

Glucose

Carbon dioxide

Waste products

Match each substance to its movement.

Diffuses into cells.

Diffuses into cells.

Diffuses out of cells.

Diffuses out of cells.

Through which cells will water diffuse into a plant?

1. Leaf cells
2. Root hair cells

How are root hair cells adapted?

Which direction does each substance diffuse?

Oxygen

Carbon dioxide

Glucose

Miss Buchanan is watering her plants. After a while water stops diffusing into the plants. Explain why.

Why is the plant wilting?