Enzymes Tryprotophan synthetase of E.coli, a typical bifunctional oligomeric enzyme consist of a protein A and one-subunit a two proteins designated A and B a protein designated B a protein designated A a protein A and one-subunit a two proteins designated A and B a protein designated B a protein designated A ANSWER DOWNLOAD EXAMIANS APP
Enzymes The nucleophile in serine proteases is water both (a) and (b) Serine Asparagine water both (a) and (b) Serine Asparagine ANSWER DOWNLOAD EXAMIANS APP
Enzymes Common feature in all serine proteases is a hydrophobic specificity pocket cluster of reactive serine residues hydrophilic specificity pocket single reactive serine residue hydrophobic specificity pocket cluster of reactive serine residues hydrophilic specificity pocket single reactive serine residue ANSWER DOWNLOAD EXAMIANS APP
Enzymes The proteolysis rate enhancement by chymotrypsin (~1010 folds) corresponds to a reduction in activation energy of about 58 kJ/mol 40 kJ/mol 49 kJ/mol 88 kJ/mol 58 kJ/mol 40 kJ/mol 49 kJ/mol 88 kJ/mol ANSWER DOWNLOAD EXAMIANS APP
Enzymes Which of the following statements about enzymes or their function is true? Enzymes do not alter the overall change in free energy for a reaction Enzymes are proteins whose three-dimensional form is key to their function All of these Enzymes speed up reactions by lowering activation energy Enzymes do not alter the overall change in free energy for a reaction Enzymes are proteins whose three-dimensional form is key to their function All of these Enzymes speed up reactions by lowering activation energy ANSWER DOWNLOAD EXAMIANS APP
Enzymes Enzyme-driven metabolic pathways can be made more efficient by grouping enzymes into free-floating, multienzyme complexes All of these fixing enzymes into membranes so that they are adjacent to each other concentrating enzymes within specific cellular compartments grouping enzymes into free-floating, multienzyme complexes All of these fixing enzymes into membranes so that they are adjacent to each other concentrating enzymes within specific cellular compartments ANSWER DOWNLOAD EXAMIANS APP
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