Lipids Lecture - LipidsLecture ,...

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Lipids Lecture Although the term  lipid  is sometimes used as a synonym for  fats , fats are a subgroup of lipids  called  triglycerides . Lipids also encompass molecules such as  fatty acids  and their derivatives  (including  tri- di- , and  monoglycerides  and  phospholipids ). Fatty acyls, a generic term for describing  fatty acids , their conjugates and derivatives, are a  diverse group of molecules synthesized by chain-elongation of an  acetyl-CoA  primer with  malonyl-CoA  or  methylmalonyl-CoA  groups in a process called  fatty acid synthesis . [6]     [7]      They are  made of a  hydrocarbon chain  that terminates with a  carboxylic acid  group; this arrangement  confers the molecule with a  polar hydrophilic  end, and a nonpolar,  hydrophobic  end that is  insoluble  in water. Glycerol has three  hydrophilic   hydroxyl groups  that are responsible for its  solubility  in  water   (Glycerol is polar, an OH is negatively charged).  Electronegativity increases   (function of atomic mass and placement of –e)
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Today we’re gonn talk about lipids. Lipids are one of the four BIG groups of biologycial molecules. 
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This note was uploaded on 08/06/2010 for the course BIO 1510 taught by Professor Rodriguez during the Spring '08 term at Wayne State University.

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Lipids Lecture - LipidsLecture ,...

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