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Anatomy Lab Quiz 2
| Question | Answer |
|---|---|
| the passive movement of a solute from an area of greater concentration to an area of lower concentration | diffusion |
| the movement of water across a semipermeable membrane from an area of low concentration of non penetrating solute particles to an area of high concentration of non penetrating solute particles | osmosis |
| the total number of solute particles in 1 liter of solution expressed in osmoses per liter of solution | osmolarity |
| a solution that has the same osmolarity as that of the cytosol of a typical erythrocytes | iso-osmotic solution |
| a solution that has a lower osmolarity that that of the cytosol of a typical erythrocytes | hypo-osmotic solution |
| a solution that has a higher osmolarity than that of the cytosol of a typical erythrocytes | hyper-osmotic solution |
| the ability of a solution to change the volume or pressure of a cell by osmosis | tonicity |
| does not cause a cell to have a net gain or loss of water | isotonic solution |
| causes a cell to gain water, swell, and possibly hemolyze, water moving in to cell | hypotonic solution |
| causes a cell to lose water and undergo crenation, water moving out of the cell | hypertonic solution |
| as the cell swells the membrane stretches to the point of bursting, eventually lysing the cell in a hypotonic solution | hemolysis |
| when the difference in concentration is large, causing the cell to shrink. happens in a hypertonic solution | crenation |
| is glucose penetrating or non-penetrating | non penetrating |
| is NaCl penetrating or non-penetrating | non-penetrating |
| is urea penetrating or non-penetrating | penetrating |
| does NaCl dissociate when placed in water? | yes |
| what happened in erythrocytes in pure H2O and why? | hemolyzed/ water moves from low concentration solute to high so if pure H2O with zero solutes it will all rush into cell and burst it |
| a 0.30 M penetrating propanol solution which does not dissociate is ________osmotic and _______tonic | -iso, and -hypo doesn't dissociate so stays at 0.30 osmoles! |
| a 0.30 M NaCl solution is ______osmotic and ______ tonic | -hyper, -hyper |
| a .20 M urea solution is ______osmotic and _______tonic | -hypo, -hypo |
| a 0.05 M NaCl solution is _______osmotic and _______tonic | -hypo, -hypo |
| a 0.45 M glucose solution _______osmotic and _______tonic | -hyper, -hyper |
| a 0.15 M glucose solution is _______osmotic and ________tonic | -hypo, -hypo |