Lipids are made up of carbon, hydrogen, and oxygen atoms, connected in long branching chains. The most common examples of lipids are fats and oils. One group of lipids commonly talked about in biology is the triglycerides. The term lipid is a general one that is used to describe a large group of naturally occurring fat like substances. Oils and fats, waxes and phospholipids are examples of lipids that are fatty acid derivatives.
Lipids that consist of fatty acids alone or other molecules may also be present. Many lipids, for example, contain groups of alcohol or phosphate. It includes
- Triglycerides – the main forms of energy stored in animals.
- Phospholipids – the cell membrane’s major components.
- Steroids – serve as messengers of chemistry and other functions.