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12 Cards in this Set
- Front
- Back
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Diffusion |
Movement of particles from greater concentration to lower concentration (from where there is more to where there is less) |
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Passive transport |
The movement of molecules that does not require energy. |
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Active transport |
Moving molecules from where there are fewer (low concentration) to where there are more (high concentration. REQUIRES ENERGY. |
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Osmosis |
Movement of WATER from where there is more concentration of water to where there is less concentration of water. |
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Aquaporin |
A protein in the cell membrane that transports water molecules |
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Concentration |
The amount of molecules there are packed into one area |
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Concentration gradient |
When there is a difference of concentrations in two different areas |
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Hypertonic solution |
Where there are more solutes than water outside of the cell than in. Water moves out. |
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Hypotonic solution |
Where there are fewer solutes than water outside the cell than inside the cell. Water moves in. |
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Isotonic Solution |
Where there is an equal amount of solutes and water inside and outside of the cell. |
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Equilibrium |
When all molecules are evenly spread out in a solution or area. |
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Exocytosis |
A way that cells 'expel' wastes. |
