Enzymes Common feature in all serine proteases is a single reactive serine residue 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 ANSWER DOWNLOAD EXAMIANS APP
Enzymes The proteolysis rate enhancement by chymotrypsin (~1010 folds) corresponds to a reduction in activation energy of about 49 kJ/mol 58 kJ/mol 88 kJ/mol 40 kJ/mol 49 kJ/mol 58 kJ/mol 88 kJ/mol 40 kJ/mol ANSWER DOWNLOAD EXAMIANS APP
Enzymes Before they can react, many molecules need to be destabilized. This state is typically achieved through oxidizing the molecules by removing electrons changing the reaction from a biosynthetic to a catabolic pathway changing the three-dimensional shape of the molecule the input of a small amount of activation energy oxidizing the molecules by removing electrons changing the reaction from a biosynthetic to a catabolic pathway changing the three-dimensional shape of the molecule the input of a small amount of activation energy ANSWER DOWNLOAD EXAMIANS APP
Enzymes Which of the common features are shared between serine and aspartate proteases? 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 Both require water to complete the catalytic cycle Both use a base to activate the nucleophile Both show specificity for certain amino acid sequences ANSWER DOWNLOAD EXAMIANS APP
Enzymes Tryprotophan synthetase of E.coli, a typical bifunctional oligomeric enzyme consist of a protein A and one-subunit a a protein designated A a protein designated B two proteins designated A and B a protein A and one-subunit a a protein designated A a protein designated B two proteins designated A and B ANSWER DOWNLOAD EXAMIANS APP
Enzymes How is the enzyme COX-1 important in human health? It catalyzes the production of hormones that maintain the stomach lining It is a chemical derivative of aspirin It is critical for the biosynthesis of DNA It helps to transport carbon dioxide in the blood It catalyzes the production of hormones that maintain the stomach lining It is a chemical derivative of aspirin It is critical for the biosynthesis of DNA It helps to transport carbon dioxide in the blood ANSWER DOWNLOAD EXAMIANS APP
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