Arrange the following events in the correct order.

A) An enzyme/substrate complex is formed.

B) Products leave the active site of the enzyme.

C) A substrate is converted to products and enzyme/products complex is formed.

D) A substrate enters the active site of the enzyme.

Answer: D, A, C, B.

Explanation: The enzymatic reaction first requires that the enzyme recognizes its substrate and enters in the enzyme's active site. Then enzyme and the substrate form a complex called enzyme/substrate complex and the substrate is converted to products in the complex and then release from the active site, so the enzyme can bond to another substrate molecule.