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Passive and Active Transport

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Stephanie Wagner

on 30 November 2015

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Transcript of Passive and Active Transport

Passive and Active

Passive Transport
Passive Transport (continued)
Active Transport
Active Transport
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.
Concentration Gradient
Passive Transport
The movement of molecules across a cell membrane without energy input from the cell.
Kool-aid Example
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.
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