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Chapter 5-1..
vocabulary
| Question | Answer |
|---|---|
| process by which a substance passes through the cell membrane without any input of energy | passive transport |
| movement of molecules from an area of high concentration to an area of lower concentration | diffusion |
| the difference in the concentration of molecules across a distance | concentration gradient |
| the concentration of molecules is the same throughout a substance | equilibrium |
| process by which water molecules diffuse across the cell membrane from an area of high concentration to an area of lower concentration | osmosis |
| the concentration of the solute molecules outside the cell is lower than the cytosol | hypotonic |
| the concentration of the solute molecules outside the cell is higher than the cytosol | hypertonic |
| the concentration of the solutes outside and inside the cell are equal | isotonic |
| organelle that removes water | contractile vacuole |
| the pressure that water molecules exert against the cell wall | turgor pressure |
| in a hypertonic environment, water leaves the cell through osmosis and causes the cells to shrink away from the cell walls and turgor pressure is lost | plasmolysis |
| the bursting of cells | cytolysis |
| the transport of substances through a cell membrane along a concentration gradient with the aid of carrier proteins | facilited diffusion |
| aid in the transport of molecules through the cell membrane | carrier protein |
| complex of protein molecules in a cell membrane that form a pore by which ions can pass | ion channel |
Created by:
mccuddenm16
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