IntroductionLipids are a group of compounds which are hydrophobic, and have nonpolar groups predominantly. They can also contain polar groups. Lipids are important to living beings. Fats, a form of lipid, are used to store energy in organisms. Lipids are found in a wide variety of capacities; as hormones, as part of membranes, and as cofactors. Lipids are water insoluble. This makes them different and unique for their roles as biomolecules.
Examples of lipids include waxes, steroids, and prostaglandins.