BIOL 1107 1nd Edition Lecture 7 Outline of Last Lecture I II III IV V Water Adhesion Cohesion Water as a Solvent pH Acids Bases Outline of Current Lecture I pH and Biology II pH in the Human Body III Buffer Current Lecture I pH and Biology Sulfuric acid egg denaturing protein ovalbumin Breaking bonds b n side chains Denature Renature Ionic bonds more susceptible to pH because H is added to carboxyl and structure breaks apart These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute Potential Q What happens if you raise pH of a certain amino acid Quaternary two proteins coming together How do digestive enzymes still function with pH being so low They don t have ionic bonds Ex pepsin has lots of acidic residues Also proteins have an optimum pH II pH in Human Body Human blood pH 7 35 7 45 What causes blood pH to change When you exercise lactic acid is released 1 2 pH Carbon dioxide gets into blood and combines with H2O The reaction above is an example of the buffering system in the human body III Buffer What is a buffer Weak acid conjugate base How would a reaction be effected if pH goes up pH increases H decreases The CO2 and H2O reaction above shifts to the right when pH increase and H decreases
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