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Cell Transport

Phospholipid bilayer

TermDefinition
Cholesterol Regulates fluidity of membrane by fitting between phospholipids Stabilizes membrane, blocks passage of small ions
Phospholipids Allows transport of lipid-soluble, small, uncharged molecules(diffuse)
Glycolipids Form glycolax- sugary coat, interact with water to stabilise mem structure( H bonds), Cell to celll adhesion, Cell recognition
Carrier vs channel Transport - Constantly flips between 2 shapes with binding sites Carrier - can be gated, water filled channel, hydrophilic r grps face inwards
Ligand secretion Cause signal
Fluid mosaic model Proteins are scattered across the cell surface membrane; molecules are able to move laterally giving flexibility
Created by: user-1992837
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