BIOL 115 Lecture Notes - Lecture 6: Triglyceride
25 Jun 2016
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Document Summary
Sugar deoxyribose: bases a, c, c, thymine. Polymerization occurs in a 5" to 3" direction. Successive nuclotides add to the 3" end of the polymer. 5 3 down, 3 5 up base pairs in the middle with sugar-phosphate backbone on the outside: minor and major groves. Fatty acids vs fats/oils has carboxyl group when made, creates 3h2o ester linkage. Saturated fatty acids: only single c-c bonds (saturated with hydrogens) Solid at room temperature: unsaturated fatty acids, at least 1 c=c double bond (not completely saturated) For part of plant oils: liquid at room temperature, double bonds make kinks that prevent easy packing, cis r\ch=hc/r, trans r\ch=hc\r. Phospholipids have two hydrophobic acids (tails) and one hydrophilic head group attatched to glycerol self assemble into a bilayer (ie a membrane) because of hydrogen bonding and hydrophobic interactions (heads out, tails together) Proteins are polymers of amino acids: range in size from a few to thousands.
