additional biology-diffusion Flashcards
1
Q
What is diffusion
A
The random movement of particles from an area of high concentration to an area of low concentration, through a partially permeable membrane
2
Q
what does diffusion normally occur in
A
- gases
- solutions
3
Q
what does the speed of diffusion depend on
A
the bigger the difference in concentration, the faster the rate of diffusion
4
Q
what does a cell membrane do
A
let things in and out of a cell
