Which one of the following statements is incorrect?

Explanation

In competitive inhibition, the inhibitor competes with the substrate for the active site of the enzyme. This results in an increase in the apparent Km, as it requires a higher concentration of substrate to achieve the same reaction velocity. Option B is incorrect because the presence of a competitive inhibitor does not decrease the Km; instead, it increases it. Option A is true because the inhibitor does not affect the breakdown of the enzyme-substrate complex. Option C is true as competitive inhibitors bind reversibly, and Option D is true because the inhibitor is not chemically changed by the enzyme.