lecture 7_structure functionMacroMol

lecture 7_structure functionMacroMol - 1 I pledge to strive...

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Unformatted text preview: 1 I pledge to strive for academic excellence, adhere to the standards of academic integrity, and act in a principled manner in all that I do. This was your pledge when joining UMassD Lipids = fats Formed from C, H and O fats , phospholipids , steroids , lipoproteins , some vitamins (lipo soluble) 18-25% of body weight Hydrophobic mostly C-H non-polar bonds (little O 2 ) insoluble in polar solvents like water Combine with proteins lipoproteins Triglycerides Neutral fats single glycerol molecule and 3 fatty acids three-carbon glycerol molecule is the backbone Highly energetic molecules 9 calories/gram compared to 4 for proteins or carbohydrates animals store triglycerides in fat cells if they eat extra food ( why? ) Triglycerides One glycerol molecule PLUS fatty acids Fatty acids attached by dehydration synthesis Saturation of Triglycerides Determined by the number of single or double covalent bonds Saturated fats contain...
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lecture 7_structure functionMacroMol - 1 I pledge to strive...

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