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18 Cards in this Set
- Front
- Back
Diffusion |
Molecules will move from higher concentration to lower |
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Osmosis |
Movement of water through semipermeable membrane |
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Osmotic Pressure |
Pressure needed for pure solvent to not move into solution |
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Hydrostatic Pressure |
Pressure exerted by a liquid |
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Dialysis |
Semipermeable membrane used to separate smaller molecules from the larger ones |
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Filtration |
Molecules forced through membrane using hydrostatic pressure |
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Active Transport |
Cells continuously move molecules/ions from lower concentration to higher |
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Pinocytosis |
Cell drankin' |
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Phagocytosis |
Cell eatin' |
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Hypertonic |
Cell shrinks Solution outside cell more than inside Water leaves cell (crenate = shrivel) Hematocrit - low, but not as low as hypotonic |
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Hypotonic |
Cell swells Solution inside cell more than outside Water rushes into cell (lysis = rupture) Hematocrit - lowest |
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Isotonic |
Cell stays the same shape Solution outside = solution inside Hematocrit - 1/2 of whole blood |
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What affects diffusion? |
Medium, temperature, and if it is polar/nonpolar |
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Which diffused best: liquid into liquid, liquid into semisolid, or solid into solid? |
Liquid into liquid |
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How well did these diffuse? A) Liquid into liquid B) Liquid into oil C) Liquid into semisolid D) Solid into liquid E) Solid into solid |
A) Diffused really well B) Nope C) Diffused, but slowly D) Diffused E) Nope |
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Explain the procedure of the osmosis experiment. |
1) Put sucrose into dialysis bag and tie it to thistle tube 2) Hang bag into beaker of water 3) Let sit and mark height of solution in 5, 10, and 15min |
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Explain the results of the osmosis experiment |
-Solution in bag higher concentration than in beaker -Sucrose can't get out (molecules too big) so water goes in to balance errythang -Water keeps going in and raising amount in thistle tube -If left overnight, it'd keep going until hit equilibrium |
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Explain the steps in the dialysis experiment |
1) Half starch, half glucose mixture and put into dialysis bag 2) Place bag in beaker full of watah and let sit for 30min 3) Put beaker water into two test tubes (5mL each) FINISH |