An example of the competitive inhibition of an enzyme is the inhibition of:
(a) succinic dehydrogenase by malonic acid
(b) cytochrome oxidase by cyanide
(c) hexokinase by glucose -6-phosphate
(d) carbonic anhydrase by carbondioxide
(a) An example of competitive inhibition of an enzyme is the inhibition of succinic dehydrogenase by malonic acid. It is a simple type of competitive inhibition. A competitive inhibitor resembles the substrate and binds to the active site of the enzyme. The substrate is then prevented from binding to the same active site.