1_30_07 - Lipids Structure C H some O ~ 20 of body weight 1...

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Lipids Structure C, H, some O ~ 20% of body weight 1. fatty acids (monomers) 16, 18, 20 Carbons 2. saturated and unsaturated. Eiscosanoids like prostaglandin, leukoineds, (sat = straight chain, unsaturated = bent) 3. fxn precursors for other lipids, cell-cell communication 4. triglycerides = triglycerols = triacylglycerols. One glycerol + fatty acids 5. fxn: storage of energy (3x more than carbo), insulation, protection, lubrication 6. waxes: fatty acids + alcohols phosopholipids = choline, phosphate, glycerol, and hydrophobic tail, highly polar in phosphate group. Amphipathic – part hydrophilic and part hydrophobic Amphoteric – part negative, part positive charge => amino acids and proteins Form either micelles (small amount) or phospholipid bilayer (larger amount) – cell membrane. Reduce fluidity if more saturated fatty acids Steroids 3: 6 carbon rings, 1: 5 carbon ring function: structural component of animal cell membranes = cholesterol. Hormones = testosterone, progesterone, estrogen, cortisone
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This note was uploaded on 09/29/2009 for the course NPB NPB 101 taught by Professor Weidner/wingfield during the Spring '08 term at UC Davis.

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1_30_07 - Lipids Structure C H some O ~ 20 of body weight 1...

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