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Cell Membrane

TermDefinition
Fluid Mosiac A model that refers to how the lipid bilayer acts more like a liquid than a solid. Also, has proteins.
Active Transport Energy Needed. Low to High concentration. Material moving through a protein channel.
Passive Transport No Energy needed. High to Low concentration. Includes- Osmosis, Diffusion, and Facilitated Diffusion.
Diffuion High to Low movement of molecules. No Energy.
Osmosis Diffusion of water from an area of High concentraion to an area of Low concentration.
Endocytosis Materials entering cells. ( ENdocytosis)
Exocytosis Materials exiting cells. ( EXocytosis)
Hydrophobic Substance that resists dissolving in water.
Hydrophilic Mixes with water.
Isotonic No change in cell shape. Describes a solution whose solute concentration is equal to the solute concentraion inside the cell.
Phospholipid Molecule that makes up the bilayer of biological membranes.
Hypotonic Solute concentration is lower than the solute concentraion inside the cell. ( LOW )
Hypertonic Solute concentraion is higher than the solute concentaion inside the cell. ( HIGH )
Protein Channel Passes large molecules that can't go through the membrane. It is like a channel that has a path for larger molecules to go through.
Facilitated Diffusion Passive Transport. Uses transport proteins to move substances down the concentration gradient.
Concentration Gradient Substances moving from High to Low areas.
Solution Solutes dissolved in solvents.
Solute Substance dissolved in a solution
Solvent In a solution, substance dissolves in solutes.
Created by: Torr_Lang