| Term | Definition |
|---|
| osmosis | the diffusion of water through a selectively permeable membrane |
| diffusion | random movement of particles from an area of high concentration to an area of low concentration |
| equilibrium | when the concentration of solute is the same throughout the solution |
| solution | a solute dissolved in a solvent |
| concentration | the mass of solute in a certain volume of solution |
| hypertonic solution | when the solute concentration is higher outside the cell than inside |
| hypotonic solution | when the solute concentration is higher inside the cell than outside |
| isotonic solution | when the concentration of solutes inside and outside the cell is the same |
| facilitated diffusion | how large molecules enter the cell through channel proteins |
| active transport | when the cell uses energy to push molecules against a concentration gradient |
| phagocytosis | when cytoplasm surrounds a particle and engulfs it |
| exocytosis | cell releases material by fusing the vacuole membrane with the cell membrane |
| lipid bilayer | two layers of lipids that form most membranes |
| channel proteins | embedded in cell membranes, these permit larger molecules to pass through them |
| receptor proteins | embedded in cell membranes, these provide docking for messenger molecules |
Combine with other sets
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