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•CHCS•Science•

•7th•2017•4A Cell Structure•

•selective permeability• •allows some molecules through but not others•
•diffusion• •movement away from an area of high concentration•
•passive transport• •does not require extra energy to pass through the membrane•
•active transport• •requires the use of extra energy•
•osmosis• •movement of water through the membrane without requiring extra energy•
•lipid• •together with protein, accounts for the molecules that compose membranes•
•fluid mosaic• •describes the membrane model•
Created by: pigsrule150
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