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20 Cards in this Set
- Front
- Back
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pressue gradient
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the difference in exerted force per unit
in two ajoining areas- concertrated or electric gradient |
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passive transport
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diffusion of substances across the membrane
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active pump transport
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the transportation of energy powerd protien motors that help move soult acorss the cell
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calcium pump
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the active transport that helps keep concentration of calcium 1000 times lower
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sodium potassium pump
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mediates movement of 2 ions , 2 na+ out and potassium 3K+
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the differance in the number per unit volume of ions or molecules between to ajoining regions?
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concetration gradient
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selectivily permeable
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allows some substances but not others
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electric gradient
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the differance of a electric change of two ajoining regions
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exosytotsis ?
endosytosis ? |
makes heat go out
and this makes heat come in |
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endo and exo are examples of what kind of transsport?gravity or force
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bolk transport
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bulk movement
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the mass movement of oneor more substances from reaction to pressure
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osmosis
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the diffusion of water across the selectivly permeable region
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hypotonic solution
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fewer solutes
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hypertonic
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higher solute
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isotonic
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no net osmosis movement
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hydrostatic pressure
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force were any fluid or volume extends against the wall, a mambrane or other closing structure
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osmotic pressure
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the amount of focrce made to product inward flow of water
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exocytosis
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cell directs the contents of secretory veslices out of cell membrane
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endosytosis
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when it brings in contents
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tonicity
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concetration of two fluids
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