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Carrier Protein a protein that transports specific across a biological membrane
Concentration Vacuole n organelle in protists that expels water
Concentration Gradient the difference in concentration of a substance across space
Diffusion the process by which molecules move from an area of greater concentration to an area of less Concentration
Equilibrium a state that exists when the concentration of a substance is the same throughout a space
Hypertonic describing a solution whose solute concentration is lower than that inside cell
Ion Channel a membrane protein that provides a passageway across the cell membrane through which an ion can diffuse
Isotonic describing a solution whose concentration equals that inside a cell
Osmosis the diffusion of water across a selectively permeable membrane
Passive Transport substances crossing the cell membrane without using any energy
Active Transport Requires Energy, Cell Membrane Pumps, and Proteins in the membrane
Endocytosis Consumption by the cell
Exocytosis release by the cell
Facilitated Diffusion Passive Transport, Movement of molecules that is too large to pass through the Membrane
Sodium-potassium Pump a career protein that actively transports K+ ions inton and Na+ ions out of the cells
The Role of Carrier Proteins they serve in facilities Diffusion transport molecules from an area of high concentration on one side of the membrane to an area of Low Concentration on the other side.
The Role Of ion channels they provide small passageways across the cell.
Created by: em-schneider
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