Fats = long term energy store.
Triglycerides are triesters, made up of an alcohol called propane-1,2,3-triol (glycerol) and three fatty acid (long chain carboxylic acids) molecules.
Unsaturated = one or more doube bonds
Saturated = no double bonds
Unsaturated fats with one double bond: monounsaturated
18:2 (9,12)
FIrst number indicates the number of carbon atoms
Second number indicates number of double bonds
Number in brackets indicated positions.
Triglycerides are formed by a condensation reaction between the 3 -OH groups and the 3 fatty acid tails, forming 3 ester linkages (bonds) and 3 molecules of water.
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