Move things across the cell membrane.
Substances enter a cell through the cell membrane
Diffusion occurs on the cell membrane.
The plasma membrane of a cell plays a role in diffusion.
diffusion and osmosis limit the size of a cell by how fast is can move
diffusion, facilitated diffusion, and osmosis
Diffusion allows the cell to passively transport the waste chemicals out side of the cell so that the cell is not harmed.
facilitated diffusion
What stops the process of diffusion in cells?
it is the cell wall ! :)
Diffusion across a cell membrane occurs when concentrations of a substance are higher either inside or outside the cell.
Before diffusion there is a higher concentration of oxygen molecules outside the cell than inside the cell. After diffusion the concentration of oxygen molecules is the same outside and inside the cell.
diffusion is the movement of materials into cell membranes when the outside of the cell has a higher density than the inside