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20 Cards in this Set

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