Eventually, the concentration either side of the membrane will be the same ... Water leaves the cell by osmosis. The cytoplasm shrinks and pulls away from the cell wall. This process is called ...

Endocytosis occurs when the cell membrane engulfs particles (dark blue) outside the cell, draws the contents in, and forms an intracellular vesicle called an endosome. This vesicle travels through ...

Transport across membranes All cells are enclosed by a cell membrane, which is selectively permeable. Molecules can move into or out of cells by diffusion and active transport. Cells can gain or ...