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Processes
Osmosis and Diffusion
| Term | Definition |
|---|---|
| passive transport | the movement of particles without the use of ATP energy |
| 2 types of passive transport | osmosis and diffusion |
| diffusion | particles move from a higher concentration to a lower concentration |
| facilitated diffusion | type of diffusion with the help of protein channels |
| osmosis | type of facilitated diffusion of water through a selectively permeable membrane with the help of aquaporins |
| Hypotonic | a solution of low solutes compared to the solvent |
| Hypertonic | a solution of high solutes compared to the solvent |
| Isotonic | a solution of the same solutes and solvents |
| Hypertonic solution | water moves out of the cell |
| Hypotonic solution | water moves into cell |
| Isotonic solution | water will move in and out of cell |
| protein pump | proteins used in active transport |
| active transport | movement of materials across a memebrane with the use of ATP energy and protein pumps |
| aqauporin | a protein pump in which only water molecules can pass through |
| ATP | supplies energy to protein pumps during active transport |
| endocytosis | the process of molecules entering the cell |
| exocytosis | the process of molecules exiting the cell |
| phagocytosis | a type of endocytosis. an extension of the cytoplasm surrounds a particle and packages it within a food vacuole |
Created by:
s715122