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Cell Transport Reviw
Quiz 11/5/09
Question | Answer |
---|---|
Diffusion | The movement of molecules from high concentration to low concentration. |
This term means that only certain molecules can pass across it. | Semi-permeable |
This type of molecule requires no energy and passes through the cell membrane by moving through lipids. | Small molecule |
These molecules pass across the cell membrane by passing through the carrier protein. Requires using the cells energy. | Large Molecules |
Law of Diffusion | Molecules have a tendency to move from areas of high concentration to areas of low concentration until equilibrium is reached. |
Osmosis | The diffusion of water molecules |
Passive Transport | The diffusion on molecules that requires NO ENERGY. Small molecules enter/leave a cell through passive transport. |
Active Transport | The movement of molecules that requires energy from low to high concentration. Large molecules enter/leave a cell through active transport. |
2 types of Passive transport. | Diffusion and Osmosis. |