biochem notes

biochem notes - Lipids- Chapter 10-pages- 343-363 Storage...

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Lipids- Chapter 10-pages- 343-363 Storage Lipids--- Fats and oils used as stored forms of energy are derivatives of Fatty Acids -Fatty Acids— are hydrocarbon derivatives---they are carboxylic acids with hydrocarbon chains 4-36 carbons long Nonpolar hydrocarbon chain accounts for the poor solubility of FA in water. The longer the FA and the fewer the double bonds, the lower its insolubility Extent of packing depends on the degree of saturation In unsaturated FA a cis double bond forces a kink in the hydrocarbon chain—these cannot pack as tightly—their interaction is thus weaker Triacylglycerols— are fatty acid esters of glycerol --Composed of there fatty acids each in ester linkage with a single glycerol Polar hydroxyls on glycerol and polar carboxylates on FAs are bound in ester linkages---so they are hydrophobic, nonpolar, insoluble in water. They provide stored energy and insulation Chapter 7: Carbohydrates Monosaccharides—are either - Aldehydes or Ketones - with 2 or ore hydroxyl groups The 6 carbon molecules, Glucose and fructose have 5 hydroxyl groups
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This note was uploaded on 03/26/2008 for the course BIOBM 3300 taught by Professor Blankenshi during the Spring '08 term at Cornell.

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biochem notes - Lipids- Chapter 10-pages- 343-363 Storage...

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