What is diffusion?
Diffusion is a passive process that involves the movement of ions from an area of high concentration to an area of low concentration through a semi permeable membrane until an equilibrium has been reached.
AK
Related Biology GCSE answers
All answers ▸How does increasing temperature affect enzymes in reactions?
Describe what happens to fish protein in the human stomach.
What is the difference between secondary and tertiary protein structure?
Explain how two different species of rabbits could have developed from a common ancestor?