8th Grade - Diffusion & Osmosis

Terms related to passive & acitive transport
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Terms in this set (...)

Diffusion
Movement of particles or molecules from an area of high concentration to an area of low concentration
Osmosis
Diffusion of water across a selectively permeable membrane
Partially permeable membrane
A membrane that allows certain materials to pass through, but not others
Equilibrium
The condition that exists in system when there is a relatively equal distribution of a particular molecule
Solute
substance that is dissolved in a solution
Solvent
the liquid that contains the dissolved solute in a solution.
Cell Membrane
regulates and controls what enters or leaves the cell
Active Transport
movement of molecules or ion into or out of the cell against its concentration gradient (from low to high) and requires an input of energy.