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Chap. 8

QuestionAnswer
phospholipids alipid that is a stuctural component in the cell membrane
lipid bilayer composed of two layers of phospholipids
equilibrium the state consentration being the same throughout space
concentration gradient the difference in concentration of a substance thoughout space
diffusion movement of particles from high concentration to low consentration
carrier protein a protein that transports substances across the cell membrane
osmosis the diffusion of water through another solvent or through a membrane that is permeable
sodium-potassium pump uses ATP to actively transport sodium ions out of a cell and potassium ions into a cell
signal anything that serves to direct guide or warn
receptor protein a protein that binds single molecules
second messenger a molecule that is generated when a specific substance attaches to the receptor on the outside of the membrane
Created by: wyattn14
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