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15 Cards in this Set
- Front
- Back
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Active transport |
Transfer across a cell membrane that requires ATP (energy) |
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Diffusion |
The movement of a substance across the membrane |
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Endocytosis |
Type of vesicle transport that allows substances into cells |
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Exocytosis |
Type of vesicle transport that allows substances out of cells |
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Facilitated diffusion |
Diffusion with the help of transport proteins |
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Osmosis |
The diffusion of water molecules across a membrane |
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Passive transport |
Substances cross the plasma membrane without any ATP (energy) |
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Sodium-potassium pump |
Pumps sodium out of the cell and postassium in |
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Transport proteins |
Help diffusion process with hydrophilic, charged ions, and large molecules |
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Vesicle transport |
How very large molecules cross the plasma membrane |
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Hypertonic Solution |
A solution with a large amount of solutes |
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Hypotonic Solution |
A solution with a low amount of solutes |
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Isotonic Solution |
A solution with an equal amount of solutes |
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Concentration Gradient |
Substances move from an area of high concentration to area of low concentration |
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Equilibrium |
The state when all the substances become equal or the same |
