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Cellular Transport
| Question | Answer |
|---|---|
| Diffusion | Molecules move from an area of high concentration to an area of low concentration. |
| Passive transport | The diffusion of particles or substances across the cell membrane without the use of energy. |
| Active Transport | Moves material across the cell membrane using only the cells energy. |
| Hypertonic | The concentration of solute outside the membrane is higher than the concentration of solute inside the cell membrane. Water will move outside the cell and the cell will shrink. |
| Hypotonic | The concentration of solute inside the cell is higher than the concentration outside the cell. Water will flow across the cell membrane into the cell and eventually cause the cell to burst. |
| Facilitated Diffusion | Molecules that diffuse across the cell membranes using channel or carrier proteins, but without using the cells energy |
| Endocytosis | When the cell takes in a substance by surrounding it with its membrane. This is a form of active transport--requiring energy. |
| Exocytosis | The vacuole inside the cell forces the contents out of the cell. This is an example of active transport--requiring energy. |
| Osmosis | Diffusion of water through a selectively permeable membrane. |
| Equilibrium | When the concentration is the same inside and outside the cell. |
Created by:
123mrsl
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