Term
| Examples of nongated, ligand gated ion channels, and definition of voltage-gated |
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Definition
| K+ slow leak, neurotransmitter gated Na+ channel; VG opens when there is a significant change in ion concentration, and therefore intramembraneous voltage |
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Term
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Definition
| binds transportee, changes shape, allows transportee through membrane passively, and returns to original shape |
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Term
| 3 types of carrier proteins |
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Definition
| uniporters, symporters (Na+ & Glu), antiporters |
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Term
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Definition
| ligand binds and opens channel: DOES NOT ENTER THROUGH CHANNEL |
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Term
| secondary active transport |
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Definition
| uses a combination of active transport (ATP use) and passive transport (down concentration gradient). i.e. Na+ & Glu symport: Na is actively put out, but brings Glu in passivley |
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Term
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Definition
| physiological complication caused by water osmotically entering the interstitial fluid due to its raised salt content (high solute concentration) |
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Term
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Definition
| force required to PREVENT water from entering a membrane via osmosis |
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Term
| iso, hyper, and hypoosmotic |
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Definition
| same, higher, and lower osmotic pressure on one side of a membrane compared to the other |
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Term
| iso, hyper, and hypotonic |
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Definition
| same, higher, and lower concentration of solute on one side of a membrane compared to the other |
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Term
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Definition
| shrinkage of a cell due to water leaving it osmotically |
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Term
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Definition
| bursting of a blood cell due to water rapidly entering it osmotically |
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Term
| saturation (think transport) |
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Definition
| when the available transport proteins for a particular ligand are being used to their maximum capacity |
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Definition
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