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lecturenoteschap9-10-4slides

lecturenoteschap9-10-4slides - Fig 9.1 Structural...

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1 BCMB 3100 - Chapter 9 Lipids Definition Major classes Fatty acids Triacylglycerol Glycerophospholipids Sphingolipids Cholesterol ___________ : water insoluble organic compounds in living organisms Lipids are hydrophobic or amphipathic In BCMB3100 we will emphasize *phospholipids *glycolipids *cholesterol (steroid) _________________ : main lipids in most biological membranes _______________ : 2nd most abundant lipid in membranes (abundant in CNS) from animals and plants Fig 9.1 Structural relationships of major lipid classes Fig 9.2 Structure and nomenclature of fatty acids
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2 Table 9.1 * * * You must be able to draw the structure of those marked * * * * common name IUPAC name 18:0 stearate Octadecanoate 18:1 oleate cis- 9-Octadecenoate 18:2 linoleate cis,cis- 9,12-Octadecadienoate Unsaturated FA - at least one C-C double bond Saturated FA - no C-C double bonds Fig 9.3 Fig 9.1 Structural relationships of major lipid classes Fig 9.5 Structure of a triacylglycerol (a) Glycerol backbone (b)Triacylglycerol (a) (b) ________________ are a neutral storage form of fatty acids
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