Chapter 5 part 2_Spr11

Chapter 5 part 2_Spr11 - Lipids(Chapter 5 pages 74 –...

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Unformatted text preview: Lipids (Chapter 5 pages 74 – 77) (Chapter 7 pages 125-128) Lipids Substances of biological origin that are soluble in non-polar solvents and essentially insoluble in water! • Triacylglycerols • Pho s pho lipids • C ho le s te ro l • S phing o lipids TYPES OF LIPIDS 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. 5-11a Fatty acid (palmitic acid) (a) Dehydration reaction in the synthesis of a fat Glycerol HOW IS A FAT MOLECULE SYNTHESIZED? Fig. 5-11b (b) Fat molecule (triacylglycerol) Ester linkage Fatty acids present in Fats Fatty acids differ in: • A) The le ng th o f C s ke le to n • B) Pre s e nc e o r a b s e nc e o f do ub le b o nds – If no do ub le b o nds : s a tura te d – If do ub le b o nd/s pre s e nt: uns a tura te d Fa tty a c ids a re lo ng c ha ins o f hydro c a rb o ns e nding in - C O O H A) B)...
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This note was uploaded on 03/04/2011 for the course BIO 311C taught by Professor Satasivian during the Spring '08 term at University of Texas.

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Chapter 5 part 2_Spr11 - Lipids(Chapter 5 pages 74 –...

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