Diffusion

Question 1

Define diffusion

Answer 1

Diffusion is the spreading out of particles from an area of higher concentration to an area of lower concentration down a concentration gradient

Question 2

In which states does diffusion happen?

Answer 2

Liquid
Gas
Particles are able to move whereas in solids they can not

Question 3

What can increase the rate of diffusion?

Answer 3

Greater concentration gradient
Greater surface area (more particles can pass through membrane at once)
Greater temperature (particles move faster as they have more energy)

Question 4

What molecules can pass through the cell membrane?

Answer 4

Only small molecules like oxygen, amino acids, glucose, water, carbon dioxide