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Canevinchap5gabriel

QuestionAnswer
diffusion natural movement of molecules from an area of greater concentration to an area of lower concentration
concentration gradient the difference in concentration of molecules from one area to another
facilitated diffusion passive transport(from higher to lower concentration) with help of a specific carrier protein
carrier proteins specific proteins that assist molecules across the cell membrane in facilitated diffusion
Ion Channels proteins in a membrane that allow charged particles to cross the membrane
Osmosis occurs when a solvent(usually water) moves across a membrane
Hypertonic higher solute concentration
hypotonic lower solute concentration
Isotonic when the concentrations of solutes outside and inside the cell are equal, the outside solution is isotonic to the cytosol.
contractile vacuole organelles that remove water
turgor pressure the pressure that water molecules exert against the cell wall
cytolysis bursting of a cell from too much water entering it
plasmolysis in a plant cell if too much water leaves the cell membrane the cell membrane will shrivel up and pull away from the wall
passive transport from high concentration to low concentration
active transport forcibly(with the help of ATP) going from lower concentration to high concentration
Sodium-potassium pump this protein transports Na+ and K+ ions up their concentration gradients. 3 Na+ out for 2 K+ in.
Phagocytosis the movement of large particles or whole cells,form of endocytosis
pinocytosis the transport of solutes or fluids, form of endocytosis
18/18 I added to sodium-potassium pump
Created by: gabrielh
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