Triglycerides Fatty acid esters of glycerol. ·Fats >Solid at room temperature >Most are derived from mammals 。Oils >Liquid at room temperature >Most are derived from plants or cold- blooded animals. => Chapter 25 5Chapter 25 5 Triglycerides • Fatty acid esters of glycerol. • Fats ➢Solid at room temperature ➢Most are derived from mammals • Oils ➢Liquid at room temperature ➢Most are derived from plants or cold￾blooded animals. =>