Understanding Diffusion

What is the primary requirement for diffusion to occur?

• A solid state

• A large volume

• A concentration gradient

• A high temperature

In the context of diffusion, what happens when you spray perfume in a room?

• The perfume particles remain in one spot

• The perfume particles move to a lower concentration area

• The perfume particles disappear

• The perfume particles become solid

How do water molecules move in a root hair cell?

• They move randomly

• They do not move

• From high to low concentration

• From low to high concentration

Which factor does NOT affect the rate of diffusion?

• State of matter

• Color of particles

• Particle size

• Temperature

Why is diffusion faster in gases than in liquids?

• Gases have more energy and move faster

• Gases are heavier

• Gases are denser

• Gases are more colorful