試題詳解

9.A researcher is studying an enzyme-catalyzed reaction and observes that adding a certain compound decreases the reaction rate without affecting the substrate binding at the active site. Which mechanism most likely explains this observation?
(A) The compound increases substrate affinity.
(B) The compound stabilizes the enzyme’s active form.
(C) The compound induces a conformational change, reducing enzyme activity.
(D) The compound decreases the reaction rate by irreversibly inhibiting the enzyme.
(E) The compound physically blocks the active site, preventing substrate binding.