Quiz 9/15
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7 terms
Terms | Definitions |
|---|---|
 Diffusion | process by which molecules tend to move from an area where they are more concentrated to an area where they are less concentrated |
| Facilitated Diffusion | many polar molecules and ions impeded by the lipid bilayer of a membrane diffuse passively with the help of transport proteins that span the membrane |
| Active Transport | the movement of materials through a cell membrane using energy |
| Hypertonic | when comparing two solutions, the solution with the greater concentration of solutes |
| Hypotonic | (of a solution) having a lower osmotic pressure than a comparison solution |
| Isotonic | (used of solutions) having the same or equal osmotic pressure |
| cells are small | nucleus can only control so much, stuff needs to get in and out, surface area vs. volume conflict |
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