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The Graph of Enzyme Activity Versus Substrate Concentration for an Enzyme

Question 173

Multiple Choice

The graph of enzyme activity versus substrate concentration for an enzyme has a sigmoidal (S-shaped) appearance.Such an activity curve indicates which type of enzyme?


A) A noncompetitively inhibited enzyme
B) A competitively inhibited enzyme
C) A nonallosteric enzyme
D) A multisubunit allosteric enzyme
E) An irreversibly phosphorylated enzyme

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