BIOC12H3 Lecture Notes - Cooking Oil, Hydrophile, Critical Micelle Concentration
Document Summary
Bioc12fall2012 lecture week 1 notes: introduction (chapter 1-3) Proteins: building blocks: 20 amino acids, polypeptides = chains of condensed amino acids, will study structures, folding and enzymatic functions, analysis of proteins. Lipids: group of molecules sharing the property of largely hydrophobic and only sparingly soluble in water, glycerolphospholipid, sphingolipids, steroids, and waxes, glycerolphospholipids are the major components of membranes. In general single bonds have less energy than double bonds < triple bonds: non- covalent bonds are usually called chemical forces between molecules. Water: the medium of life (chapter 2: a water molecules is a large dipole. Ionization property of water: ph and the ph control: 2h2o h3o+ + oh, kw = 10-14, pka=14 p = -log10. 0. 1m naoh poh = 1 , ph = 14-1 ph = -log10-13 = 13. 0. 1m hcl ph = - log (0. 1), ph = 1 n = cv n = 0. 002m x 50(10-6)l n = 10-7mol. We neglected ionization of water, which is not correct.
