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Cell Transport

TermDefinition
Osmosis The movement of water from an area of high concentration to low.
Diffusion The movement of particles from an area of high concentration to low.
Hypertonic Concentration of dissolved substances is higher on the outside of the cell.
Hypotonic Concentration of dissolved substances is lower on the outside of the cell.
Isotonic Concentration of dissolved substances is the same on the inside and outside of the cell.
Passive Transport The movements of materials across the cell membrane without the use of energy.
Active Transport The movement of materials across the cell membrane with the use of energy.
Facilitated Diffusion The movement of materials from an area of higher concentration to an area of lower concentration with the help of transport proteins.
Endocytosis Active transport, engulfing material into the cell.
Exocytosis Active transport of materials out of the cell.
Equilibrium Continuous movement of particles but no overall change in concentration of materials
Semi-Permeable Allows some substances in and out of the cell but not others.
Solvent Substance in which another substance is dissolved
Solute Substance dissolved in a solvent
Fluid Mosaic Model that describes the plasma membrane. Fluid because proteins can move within the layer and mosaic because of the pattern it makes
Created by: Curt