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CHAFIN-Life Sc. #7

QuestionAnswer
cell membranes the gatekeeper of the cell
selective permeability some substances can pass through the membrane while others cannot
permeability all things can pass through
impermeable things cannot pass through
cell transport things moving into and out of cells
passive transport no energy needed to pass through the membrane
active transport uses energy to pass through the membrane
diffusion molecules move from higher to lower area of concentration
cell equilibrium cells always want to maintain balance
air freshener an example of diffusion
osmosis diffusion of water molecules across a cell membrane
isotonic water movement is in and out of a cell
hypertonic water movement out of a cell
hypotonic water movement into a cell
uses energy to move molecules from lower to higher levels of concentration active transport
engulfing the transport of proteins by "grabbing" molecules and taking them into cells using energy
vacuole formed when a cell membrane surrounds the molecule and "swallows" it
transport proteins carrier proteins
Created by: cmchafin
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