Bch4024 - Study guides, Class notes & Summaries

BCH4024 EXAM 1 QUESTIONS WITH CERTIFIED ANSWERS What properties of β-strands forms beta sheets - Answer-hydrogen bond Where is the hydrogen bonds in a β-sheet? - Answer-between the backbone of C=O of one chain and the N-H of another chain segment Where is the hydrogen bonds in a α-helix? - Answer-all hydrogen bonds involve the same element of polypeptide chain Where are the R-groups of neighboring residues in a β-strand? - Answer-opposite directions The peptide bonds of adjacent res...

BCH4024 TEST 1 QUESTIONS WITH COMPLETE SOLUTIONS Isoelectric Point of Amino Acids - Answer-At the isoelectric point (pI = pH), average charge equals 0 The Henderson-Hasselbalch Eqn. can be applied at pI for both equilibrium dissociations. Two dissociation reactions involve the net zero charge species HAH+ <--> HA + H+ HA <--> A- + H+ (Isoelectric Point of Amino Acids) Two Henderson-Hasselbalch equations can be summed to solve for pI. - Answer-2pI=pKa1+ pKa2 +log [HA] +log...