Provides minor physical protection Cholestrol storage and the percentage of the same changes with age. Triglycerides consist of one molecule of glycerol and three molecules of fatty acids. 144.7 157.3 167.7 181.4 Lipid characteristics Lipids donot mix with water and therefore are hydrophobic . Lipids are composed of several types of fatty acids . W6 are essential fatty acids.
Lipids require sterols for their transport and are steroid precursor.