-source of energy-waterproofing (as they are hydrophobic)-insulation (fats are slow conductors of heat)-protection (fat stored around organs)-buoyancy (less dense than water)-electrical insulator (surrounds nerves- increases speed)
Phospholipid structure and phospholipid bilayer
Food tests for lipids
Emulsion test1) mix the sample being tested with alcohol (eg ethanol)2)shake tube thoroughly3)add cold water, shake gently4)if a milky white emulsion is formed then this indicates the presence of a lipid
