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Diffusion & Osmosis

Osmosis From less concentrated solution into a more concentrated one
Diffusion Moves particles like oxygen into the cells
Concentration Amount of substance in a certain area
Selectively Preamble Membrane Allows some substances through
Active Transport Transport of substances across the cell membrane from an area of low concentration to an area of high concentration requiring the cell to use energy
Transport Proteins Creates a selectively permeable membrane that regulates which molecules enter and leave the cell
Concentration Gradient A difference in the concentration of a substance across a distance
Passive Transport The movement of substances across a cell membrane with the use of energy by a cell
active transport Movement of chemical substance across the cell membrane using energy
vesicle Forms when part of the cell membrane surrounds the materials to be taken into cell or transported
exocytosis Contents of a cell vacuole are released to the exterior through fusion of the vacuole membrane with the cell membrane
Created by: ccdpittsford