The Structure and function of lipids
Lipids are triglycerides, phospholipids and other related compounds. They contain Carbon, hydrogen and Oxygen, but have a higher ratio of hydrogen and oxygen than carbohydrates. And Lipids are more reduced than carbohydrates and are more readily oxidised when they are respired, and they therefore liberate twice as much energy per gram as carbohydrates and proteins. Lipids produce a lot of metabolic water when respiring and is useful to camels!