| A | B |
|---|
| balance | the result of diffusion |
| higher concentration | diffusion takes place from this area |
| lower concentration | diffusion goes to an area of |
| osmosis | movement of water across a cell membrane from high to low conc. |
| diffusion | dispersal of ink in container of water is example of |
| facilitated diffusion | how sugar molecules enter a cell |
| doesn't require energy | facilitated diffusion |
| carrier protein | facilitated diffusion requires this |
| shape of carrier | facilitated diffusion involves a change in the |
| chemical or electrical signals | controls ion transport across a cell membrane |
| passive transport | does not expend energy |
| potassium | must enter cell thru active transport |
| sodium & potassium | sodium-potassium pump transports |
| out | way that sodium travels thru the membrane |
| in | way that potassium travels thru the membrane |
| exocystosis | ridding of cell of material by discharging it from sacs at cell surface |
