Diffusion is the net movement pf the molecules in a liquid or gas form an area of highly concentrated to an area of low concentration.
The move down a concentration gradient, the movement is dependent on the tempreture, if you have no. of molecules due to energy they will spread until reaching a uniform distribution.
When they reach the uniform distribution the movement no longer changes in concentration because equal numbers of molecules move in every direction.
For molecules like oxygen, carbon dioxide, move by diffusion through protein-lined pores, as a form of passive transport, whereas the larger molecules cannot move across the membrane by simple diffusion
Comments
Report