Lipids are classified as follows: 1. Simple lipids: Esters of fatty acids with various alcohols. (a) Fats: Esters of fatty acids with glycerol. Oils are fats in the liquid state. (b) Waxes: Esters of fatty acids with higher molecular weight monohydric alcohols. Classification of Lipids Lipids that are ester or amides of fatty acids: Waxes – are carboxylic acid esters where both R groups are long straight hydrocarbon chain. Performs external protective functions. Triacylglycerol – are carboxylic acid triesters of glycerols. They are a major source of biochemical energy. Lipids are non polar so they are soluble in nonpolar environments thus not being water soluble because water is polar. Fatty Acids Stearic acid Oleic acid. An carbon fatty acid An carbon fatty acids with no double bonds with one double bond.
Classification of lipids pdfHowever, Conn and Stumpf () have traditionally classified lipids into following 6 classes: 1. Acyl glycerols. 2. Waxes. 3. Phospholipids. 4. Sphingolipids. 5. Definition and classification (simple, complex, derived) of lipids. Functions: energy source, essential nutrients, hormones, thermal insulator, pheromones. Fatty acids: principal building blocks of complex lipids. Waxes: esters of fatty acids. (heat sensitive). Triacylglycerols: membrane precursors, energy storage. 2. Classification of Lipids. Lipids that are ester or amides of fatty acids: ◇ Waxes – are carboxylic acid esters where both. R groups are long straight hydrocarbon. PDF | Lipids are produced, transported, and recognized by the concerted actions of numerous enzymes, binding proteins, and receptors. A comprehensive. Lipids and Classification: Lipids: Biological lipids are a chemically diverse group of organic compounds which are insoluble or only poorly soluble in water.
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