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Fluid Mosaic Model of the Cell Surface Membrane - Coggle Diagram
Fluid Mosaic Model of the Cell Surface Membrane
Phospholipids
2 fatty acid tails that are non-polar
Have a polar phosphate head (hydrophilic)
Polar head forms hydrogen bonds with water & so it is attracted to it
Non-polar fatty acid tails are repelled by water & form a bilayer (hydrophobic)
The fatty acid tails form a barrier to large polar molecules
Glycoproteins & Glycolipids
Proteins & lipids that have carbohydrate chains attached
On the outside of the cell
Act as receptor molecules for hormones
Form hydrogen bonds with water stabilising the membrane
Self-antigen that prevents immune cells attacking the cell
Cholesterol
maintain the fluidity of the membrane in response to temp change
Channel Protein
Transport large molecules across the membrane
Carrier Protein
Transport large polar molecules across the membrane
Carbohydrate Chain
on the outside of the cell attached to phospholipids