Which one of the following statement is incorrect ?

(a) A competitive inhibitor reacts reversibly with the enzyme to form an enzyme-inhibitor.

(b) In competitive inhibition the inhibitor molecule is not chemically changed by the enzyme.

(c) The competative inhibitor does not affect the rate of breakdown of the enzyme-substrate complex.

(d) The presence of the competitive inhibitor decreases the km of the enzyme for the substrate.

(d) In the presence of a competitive inhibitor, Vmax remains unchanged while Km increases.

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