RT Book, Section A1 de Jesus, Matthew A2 Freeman, Brian S. A2 Berger, Jeffrey S. SR Print(0) ID 1102570375 T1 Lipid Metabolism T2 Anesthesiology Core Review: Part One Basic Exam YR 2014 FD 2014 PB McGraw-Hill Education PP New York, NY SN 9780071821377 LK accessanesthesiology.mhmedical.com/content.aspx?aid=1102570375 RD 2024/04/25 AB The general category of lipids in the body is composed of triglycerides, phospholipids, and cholesterol. The basic building blocks of triglycerides and phospholipids are long chain hydrocarbon organic acids known as fatty acids. Cholesterol does not contain fatty acids, but its sterol ring is synthesized from fatty acids, and thus it shares many similarities with the other lipids. Lipids serve various bodily functions, but primarily act as an energy source. Phospholipids and cholesterol are key components in cellular membranes.