NUR1 200 Lecture Notes - Lecture 9: Polymerization, Thymine, Purine
10 May 2016
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Chapter 9: regulation of carbohydrate metabolism (lipids & nucleic acids) Simplest lipids are triacylglycerols also called: triglycerides, fats, neutral fats. 3 fatty acid chains, ester-linked to a glycerol. Mixed triacylglycerols have 2 or 3 different fa. The mixed triacylglycerol shown here has three different fatty acids attached to the glycerol backbone. When glycerol has different fatty acids at c-1 and c-3, c-2 is a chiral center. Hydrocarbon chains from 4 36 carbons long. Different forms: fully saturated ie. no double bonds, unsaturated ie. one or more double bonds. Nomenclature of fatty acids: 18= nm of carbon and 1= nb of double bond. Cis= on the same side and trans = on opposite side. Standard nomenclature assigns the number 1 to the carboxyl carbon (c-1), and to the carbon next to it. The positions of the double bonds are indicated relative to the carbon. ***importance of the ration of omega-3 and omega-6 fatty acids are better to have ***
