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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! Lipids are non-polar compounds and therefore do not dissolve in polar solvents, but they do dissolve in non-polar solvents. The triglycerides molecules are the biggest group of lipids and the energy store is found under the skin in adipose tissue, they consist of three fatty acid molecules joined by ester bonds (which are formed by condensation) to a glycerol molecule. They are the biggest group of lipids and the energy store is found under the skin in adipose...

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