Campbell's Ch 6, 7: structure and function, prokaryotes v eukaryotes, mvmnt of substances, protein function. Also Cliff's AP Bio 4th ed., Ch 3: Cells.
Terms : Hide Images
| 7731236564 | plasma membrane | separates internal metabolic event; controls mvmnt of materials |  | 0 |
| 7731236567 | selectively permeable | allows: small, unchanged, polar molecules; hydrophobic molecules blocks: large polar molecules; ions |  | 1 |
| 7731236568 | integral proteins | imbedded in bilipid layer |  | 2 |
| 7731236569 | peripheral proteins | attached to membrane surface |  | 3 |
| 7731236570 | channel proteins | passage for hydrophillic substances |  | 4 |
| 7731236571 | aquaporins | channel proteins; increase rate of H20 passage |  | 5 |
| 7731236572 | ion channels | ions; gated channels |  | 6 |
| 7731236573 | gated channels | open and close in response to stimuli EX: nerve and muscle cells |  | 7 |
| 7731236574 | carrier proteins | specific molecules bind, changing protein shape |  | 8 |
| 7731236575 | transport proteins | use ATP (active transport) EX: sodium-potassium pump |  | 9 |
| 7731236576 | recognition proteins | unique identification; glycoproteins EX: blood types |  | 10 |
| 7731236577 | receptor proteins | provide binding sites; activates specific cell response |  | 11 |
| 7731236578 | cholesterol | stability to animal cells; @ high T=maintain firmness, @ low T=allows flexibility |  | 12 |
| 7731236609 | extracellular matrix | (animal cells only) mechanical support, helps bind adjacent cells |  | 13 |
| 7731236611 | hypertonic | solute hypertonic to solution=higher [solutes] |  | 14 |
| 7731236612 | hypotonic | solute hypotonic to solution=lower [solutes] |  | 15 |
| 7731236613 | isotonic | [solute]=[solution] |  | 16 |
| 7731236614 | passive transport | [higher] to [lower]; increases w/ increase in [x], temp., smaller particle size |  | 17 |
| 7731236615 | diffusion | random mvmnt leads to net mvmnt from [high] to [low] |  | 18 |
| 7731236616 | osmosis | diffusion of water across selectively permeable mmbrn |  | 19 |
| 7731236617 | turgor pressure | osmosis into cell |  | 20 |
| 7731236618 | plasmolysis | osmosis out of cell |  | 21 |
| 7731236619 | cell lysis | swelling of cell b/c excess turgor pressure |  | 22 |
| 7731236620 | facilitated diffusion | diffusion through channel or carrier proteins |  | 23 |
| 7731236621 | active transport | [lower] to [higher]; requires use of E (usually ATP) | | 24 |
| 7731236622 | electrochemical gradient | combo. of concentration and electrical voltage gradients of ions |  | 25 |
| 7731236623 | cotransport | protein that allows downhill mvmt to drive another uphill; E for uphill from [gradient] from downhill |  | 26 |
| 7731236624 | vesicular transport | uses vesicles to move substances across plasma mmbrn |  | 27 |
| 7731236625 | exocytosis | fuse w/ membrane, release contents outside cell |  | 28 |
| 7731236626 | endocytosis | capture substance outside cell, fuse w/ membrane, release contents into cell; 3 types: phagocytosis, pinocytosis, receptor-mediated |  | 29 |
| 7731236627 | phagocytosis | cellular eating; undissolved material enters cell; forms phagocytic vesicle |  | 30 |
| 7731236628 | pinocytosis | cellular drinking; dissolved material enters cell; forms liquid vesicle |  | 31 |
| 7731236629 | receptor-mediated endocytosis | specific molec. (ligands) binds to site, resulting in pinocytosis |  | 32 |
