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Passive and Active Transport
Transcript of Passive and Active Transport
Passive Transport (continued)
The movement of molecules across a cell membrane with energy input from the cell.
Exocytosis is the release of substances out of a cell by the fusion of a vesicle with the membrane.
Endocytosis uses energy to bring materials inside the cell. This process forms a pocket around liquids or fairly large molecules in the cell throughout the cell membrane. Then it becomes a vesicle.
The movement of molecules across a cell membrane without energy input from the cell.
The movement of molecules from areas of higher concentration to areas of lower concentration until they are equally distributed
on either side of the
Osmosis is the diffusion of water.
Diffusion is like Kool-aid because of the way the Kool-aid powder distributes itself through the liquid. It diffuses into the liquid.