The lipids are a diverse group of macromolecules that share the property of possessing relatively

The lipids are a diverse group of macromolecules that share the property of possessing relatively

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The lipids are a diverse group of macromolecules that share the property of possessing relatively few polar functional groups; this prevents formation of hydrogen bonds with water molecules andaccounts for the characteristic insolubility of lipids in water - Fats are simple lipids synthesized from a molecule of glycerol and three fatty acids (Tortora et al., Figure 2.10) = Glycerol molecules (Tortora et al., Figure 2.10a) have three carbon atoms to which are attached three hydroxy (-OH) groups = Fatty acids (Tortora et al., Figure 2.12b) are long hydrocarbon chains ending in a carboxylic acid (-COOH) group = Fats are formed by dehydration synthesis reactions between the hydroxy groups on glycerol and the carboxylic acid groups on three fatty acids (Tortora et al., Figure 2.10c); the chemical bond formed is called an ester linkage = The properties of fats vary according to the structure of the component fatty acids; for example, unsaturated fats are fats in which there are one or more double bonds between
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This note was uploaded on 01/23/2012 for the course MCB MCB2010 taught by Professor Smith during the Fall '09 term at Broward College.

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