<prompt> Which of the following enzymes do not participate in a ping-pong reaction?AminotransferasesSerine proteasesPyruvate carboxylaseNone of the above  <response>: The term ping-pong applies to mechanisms in which one or more products are released from the enzyme before all the substrates have been added. Ping-pong reactions involve covalent catalysis and a transient, modified form of the enzyme.Example- aminotransferases, serine proteases and pyruvate carboxylase.Reference- Harper 30th edition Pg- 84 