9-17-07 311C F07 L7OL - Lipids The one class of large...

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Lipids The one class of large biological molecules that does not consist of polymers Diverse group of hydrophobic molecules Consist mostly of hydrocarbons
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Lipids Triglycerides Phospholipids Steroids Structure vs. fliudility
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Triglycerides Fats and oils Constructed from two types of amller molecules Glycerol Fatty acids Joined by covalent bonds via dehydration reactions
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Triglycerides: Structure Very hydrophobic in hydrocarbon chain Hydrophilic at the end – carboxyl at the end Ester linkage: covalent bond
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Fatty Acids Variation – in length (12 – 24 Cs) Vary in number and location of double bonds Saturated fatty acids – healtheier Unsaturated fatty acids – taste good
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Saturated Fatty Acids Have the maximum number of hydrogen atom possible
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Saturated Fatty Acids Saturated fats = fats Solid in room temperature Straight chain allows tail to interact with one another Stearic acid
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Unsaturated Fatty Acids One or more double bond Not a straight chain Bent linolenic acid
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9-17-07 311C F07 L7OL - Lipids The one class of large...

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