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2005_campbl05b - Chapter 5b The Structure and Function of...

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Chapter 5b: The Structure and Function of Macromolecules (Lipids)
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Polymers, Monomers, and Lipids polymer category of biomolecules monomer polysaccharide carbohydrates monosaccharides polypeptides proteins amino acids polynucleic acids RNA & DNA nucleotides Lipid monomers are less persistent than the above monomers Consequently, lipids are less-readily described using the same polymeric terms (other than triacylglycerides, we’ll ignore lipid synthesis) Lipids posses numerous C-H bonds (i.e., they are very hydrocarbon-like)
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Various Lipids Fat Fatty acid Palmitic acid Triglyceride Saturated fatty acid Unsaturated fatty acid Monounsaturated fatty acid “Trans fatty acid” Polyunsaturated fatty acid Stearic acid Oleic acid Oil Phospholipid Phosphatidylcholine Steroid Cholesterol Triacylglycerol Steroid hormone Sex hormone Testosterone Waxes Lard Omega-3-fatty acids Free fatty acids “Butter” “Margarine” Olive oil Flax seed oil “Toasted Sesame oil” Bile salts
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