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Bio: Chapter 5
Homeostasis and Cell Transport
| Question | Answer |
|---|---|
| when a solution has a lesser concentration of particles than the cell | hypotonic |
| membranes that let some things through | selectively permeable |
| the diffusion of water | osmosis |
| prefix that means outside | exo |
| the engulfing of large particles by a cell | endocytosis |
| turns color in the presence of starch | iodine |
| word that means cell | cyto |
| a difference in the concentration | concentration gradient |
| when a solution has a great concentration of particles than the cell | hypertonic |
| a type of active transport involving elements Na and K | sodium-potassium pump |
| type of transport that requires energy | active transport |
| movement of molecules from a high to a low concentration | diffusion |
| a molecule composed of two hydrogens and one oxygen | water |
| a solution that has an equal amount of particles | isotonic |
| prefix that means inside | endo |
| organelle that helps remove excess water from prokaryotic cells | contractile vacuole |
| when molecules are evenly spread throughout an area | equilibrium |
| the maintaining of an internal balance | homeostasis |
| type of transport that does not require energy | passive |
| a transport protein that changes shape when a particle binds with it | carrier protein |
| transport protein that provides a tubelike opening in the plasma membrane through which particles can diffuse | channel protein |
| used during active transport but not passive | energy |
| process by which a cell takes in material by forming a vacuole around it | endocytosis |
| process by which a cell expels wastes form a vacuole | exocytosis |
| a form of passive transport that uses transport proteins | facilitated diffusion |