vocab

Question	Answer
homeostasis	the stable internal conditions of a living thing
equilibrium	a state that exists when the concentration of a substances is the same throughout a space
hypotonic	describing a solution whose solute concentration is lower than that inside a cell
facilitated diffusion	a process in which substances move down their concentration gradient across the cell membrane with the addistance of carrier proteins
endocytosis	the process by which a cell surrounds and engulfs substances
diffusion	the proces by which molecules move from an area of greater concentration to any area of lesser concentration
osmosis	the diffusion of water across a slectivelu permeable membrane
plasmolysis	the shrinking or wilting of a walled cell in hypertonic environment
active transport	the movement aof a substance across a cell membrane against a concentration gradient requires the cell to expend energy
phagocytosis	a tyoe of endocytosis in which a cell engulfs large particles or whole cells
concentration gradient	concentration gradiente difference in concentration of a substances across space
contractile vacules	an organelle in protists that expels water
ion channels	membrane protein that provides a pageway across the cell membrane through which an ion can diffuse
sodium-potassium pump	a carrier protein that actively transports K+ ions into Na+ ions out of cells

Resource summary

	Created by Abbie Hoerbert over 8 years ago