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Lipids (Phospholipids (uses (important in the structure of biological…
Lipids
Phospholipids
have two fatty acid chains
instead of a 3rd chain its attached to a phosphate group and another molecule
the phosphate 'head' is polar and hydrophilic
the fatty acid 'tails' are non-polar and hydrophobic
uses
important in the structure of biological membranes
providing insulation for nerve cells, for faster electrical impulses
Triglyceride
one glycerol and three fatty acids
uses
energy
insulation
waxes to avoid water
source of water
protect organs
The ester bonds
reactions between 1 gylcerol and 3 fatty acids are condenstion reaction
condensation reaction occurs between:
the carboxyl group (COOH) of the fatty acid
the hydroxyl group (OH) of glycerol
Lipase breaks lipids down
Lipids wont disolve in water as they are non-polar
Bile emulsifies fat
Lipids are used for energy storage and insulation