Chapter 5 part 2_F10 - Lipids (Chapter 5 pages 74 77)...

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Unformatted text preview: Lipids (Chapter 5 pages 74 77) (Chapter 7 pages 125-128) Triacylglycerols Phospholipids Cholesterol Sphingolipids Triacylglycerols (Triglycerides/neutral fats) (a) Saturated fat and fatty acid Stearic acid Figure 5.12 (b) Unsaturated fat and fatty acid cis double bond causes bending Oleic acid Figure 5.12 MOST ABUNDANT CLASS OF LIPIDS IN ANIMALS Fig. 5-11b (b) Fat molecule (triacylglycerol) Ester linkage Fig. 5-11a Fatty acid (palmitic acid) (a) Dehydration reaction in the synthesis of a fat Glycerol HOW IS A FAT MOLECULE SYNTHESIZED? Fatty acids are long chains of hydrocarbons ending in - COOH (16-18 carbons) Fatty acids present in Fats Fatty acids differ in: A) The length of C skeleton B) Presence or absence of double bonds If no double bonds: saturated If double bond/s present: unsaturated Two types of fatty acids Two isomers of unsaturated fatty acids If only one double bond present: Monounsaturated fatty acid If more than one double bond present: Polyunsaturated fatty acid Fig. 5-12a (a) Saturated fat Structural formula of a saturated fat molecule Stearic acid, a saturated fatty acid Fig. 5-12bFig....
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Chapter 5 part 2_F10 - Lipids (Chapter 5 pages 74 77)...

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