Enzymes The proteolysis rate enhancement by chymotrypsin (~1010 folds) corresponds to a reduction in activation energy of about 49 kJ/mol 88 kJ/mol 40 kJ/mol 58 kJ/mol 49 kJ/mol 88 kJ/mol 40 kJ/mol 58 kJ/mol ANSWER DOWNLOAD EXAMIANS APP
Enzymes Which of the following (s) is/are serine proteases? Elastase all of these Chymotrypsin Trypsin Elastase all of these Chymotrypsin Trypsin ANSWER DOWNLOAD EXAMIANS APP
Enzymes The role of Asp 102 and His 57 during trypsin catalysis is to keep the specificity pocket open function as a proton shuttle neutralize the charge on the other's side chain clamp the substrate into the active site keep the specificity pocket open function as a proton shuttle neutralize the charge on the other's side chain clamp the substrate into the active site ANSWER DOWNLOAD EXAMIANS APP
Enzymes Which of the common features are shared between serine and aspartate proteases? Both require water to complete the catalytic cycle Both use a base to activate the nucleophile Both show specificity for certain amino acid sequences All of these Both require water to complete the catalytic cycle Both use a base to activate the nucleophile Both show specificity for certain amino acid sequences All of these ANSWER DOWNLOAD EXAMIANS APP
Enzymes In the enzyme-catalyzed reaction shown below, what will be the effect on substances A, B, C, and D of inactivating the enzyme labeled E2? A ---(E1)---> B ---(E2)---> C ---(E3)---> A, B, and C will still be produced, but not D A will still be produced, but not B, C, or D A, B, C, and D will all still be produced A and B will still be produced, but not C or D A, B, and C will still be produced, but not D A will still be produced, but not B, C, or D A, B, C, and D will all still be produced A and B will still be produced, but not C or D ANSWER DOWNLOAD EXAMIANS APP
Enzymes Common feature in all serine proteases is a cluster of reactive serine residues hydrophilic specificity pocket hydrophobic specificity pocket single reactive serine residue cluster of reactive serine residues hydrophilic specificity pocket hydrophobic specificity pocket single reactive serine residue ANSWER DOWNLOAD EXAMIANS APP
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