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12 Cards in this Set

  • Front
  • Back

Passive Transport

movement of biomolecules across the cell membrane

Diffusion

the spreading of something more widly

concentration gradient

the measure of the amount of a sub-component in a solution

equilibrium

a state in which opposing forces or influences are balenced

osmosis

a process of which molecules of solvent tend to pass through a membrane from a less concentrated solution into a more concentrated one

hypotonic

having a lower osmotic pressure than a particular fluid

hypertonic

having a higher osmotic pressure than a particular fluid

isotonic

denoting or relating to solution having the same osmotic pressure as some other solution

contractile vacuole

a vacuole in some protozoans that expels excess liquid on concentration

facilitated diffusion

the process of spontaneous passive transport of molecules and ions across a biological membrane via specific transmembrane intrgal proteins

carrier protein

facilitate the diffusion of different molecules

ion channel

pore-forming membrane proteins who functions include establishing a resting membrane potential