Which of the following regarding the hydrolysis of p-nitrophenyl acetate by chymotrypsin is correct?
A) The active site contains a serine residue,an unprotonated histidine,and an unprotonated aspartate residue at pH 7.0 prior to binding the substrate.
B) The first product is acetic acid.
C) An actyl-enzyme tetrahedral intermediate forms during the mechanism.
D) Attack of a water molecule on the acyl-enzyme intermediate yields the first product.
Correct Answer:
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Q1: Which of the following values is the
Q2: Which of the following structures has the
Q3: The catalytic triad common to many serine
Q4: Which of the following is NOT a
Q6: Which of the following inhibitors is effective
Q7: Which of the following is NOT a
Q8: Which of the following types of catalytic
Q9: Which of the following types of kinetic
Q10: Which of the following determines the enzymatic
Q11: Which of the following attributes does NOT
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