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Cell Transport Unit 3
Terms in this set (10)
The general term for a type of active transport where a cell takes materials into the cell by pinching off a vesicle from the cell membrane.
The general term for a type of a type of active transport where a cell moves materials out of the cell by pinching off a vesicle from the cell membrane.
Adenosine triphosphate; a molecule that acts as the energy currency of the cell
Non polar molecules and small uncharged polar molecules
Can diffuse straight through the cell membrane without a channel protein.
Large uncharged polar molecules and ions
Cannot diffuse straight through the cell membrane. Need a channel protein to enter or exit the cell.
energy from ATP is used to pump molecules and ions across the cell membrane (can go against concentration gradient
a protein that allows the transport of specific substances across a cell membrane
Movement of molecules across cell membrane from an area of higher concentration to an area of lower concentration.
Fundamental rule of science that particles will disperse (spread out) from areas of high concentration (a lot) to areas of low concentration ( a lil')
Diffusion of water through a selectively permeable membrane
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