diffusion of molecules(unit 3) Flashcards
1
Q
what is diffusion
A
Diffusion is the movement of a substance from an area of high concentration to an area of low concentration.
Diffusion happens in liquids and gases because their particles move randomly from place to place.
Diffusion is an important process for living things; it is how substances move in and out of cells.
2
Q
where can diffusion occur
A
in the membrane
3
Q
what factors affect the rate of diffusion
A
size temperature distance through object surface area shape of the surface of which the molecules are diffusing