BCH210H1 Lecture : Tutorial notes
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BCH210H1 Full Course Notes
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Document Summary
Know structures, length, contain double bonds or not of what s shown in lecture. Usually 14 to 20 carbons because synthesis adds two carbons at a time. Stearate is carboxylate group, rest is carbons and hydrogens. In oleate, cis double bond all natural fatty acids have cis double bonds. Linolenate three double bonds 16th carbon is omega 3 polyunsaturated. Longer acyl chain higher melting temperature, want to be a solid: close packing of hydrocarbon forces, more forces, stronger interactions. Triacylglycerol ester bonds completely hydrophobic in membranes. Phospholipids are fatty acids found in membranes: know structures of phospholipid head groups, know the charges too, serine is zwitterionic on its own, but add head, becomes negative charge. Can have length, saturation because of fatty acid groups: have fatty acid groups through amide bond, not ester bond know this. Ceramide: free hydroxyl head group, tail does not change, always 18 carbons. Sphingomyelin: have head group attached to ceramide.
