a gas?
Substances enter a cell through the cell membrane
facilitated diffusion
Materials can enter a cell through processes like diffusion, facilitated diffusion, and active transport. These substances can leave a cell through processes such as diffusion, osmosis, and exocytosis.
through diffusion and osmosis. :-)
water
the process that causes the water to enter and leave the cell is diffusion
A substance can enter a cell through diffusion, facilitated diffusion, active transport, endocytosis, or passive transport. Each of these processes has different mechanisms for moving substances across the cell membrane.
Diffusion
The process the cell must use to allow the protein to enter is rather simple and uncomplicated. The cell uses the process of osmosis and diffusion along a concentration gradient to allow for passage in and out of the cell.
protein
Things can enter the cell through various processes, such as osmosis, diffusion and active transport. Passive transport (diffusion/osmosis) occurs because of a difference in concentration across the membrane.
diffusion through the lipid bilayer.