Lipids

Lipids are hydrophobic which means they don't dissolve in water. There are four major lipids: Fats, Waxes, Steroids, and Oils. Lipids, or fats, store energy, help to insulate the body, and cushion and protect organs. There are saturated and unsaturated fatty acids, unsaturated having a double bond meaning the body can break it down. Saturated goes strait to the thighs. Triglycerides are monomers of lipids and are composed of glycerol and three fatty acid chains. Glycerol is the main "structure" or support for fat. Lipids also makeup cell membrane and are called phospholipids, which have a polar head and hydrophobic, nonpolar fatty acid tails (two).