<prompt> Competitive inhibition is characterized by all the following, exceptInhibitor is a structural analogue of the substrateInhibitor binds to the active siteIncreases Km valueIrreversible  <response>: A competitive inhibitor has no effect on Vmax but raises Km, the apparent Km for the substrate. AND ITS REVERSIBLE. Inhibition is overcome by increasing the concentrations of the substrate. 