How many of the following statements are correct regarding properties of enzyme? (i) It lowers down the activation energy of the reaction. (ii) An active site of the enzyme is the pocket into which the substrate fits. (iii) The catalytic structure of most of the enzyme is globular and primary. (iv) Carbonic anhydrase enzyme is considered as the fastest enzyme.

Step-by-step solution

Enzymes are made up of proteins that show the tertiary or quarternary structure and are generally globular proteins. This complex coiling and folding results in the formation of a cavity or pocket known as active site to which substrate binds forming ES complex. Enzyme catalyzes a reaction by lowering down the activation energy of the reaction. The carbonic anhydrase enzyme is one of the fastest enzymes with a typical catalytic rate ranges between 104 and 106 reactions per second.