<prompt> All enzymes are not proteins. This statement is justified by:All enzymes do not follow the Michaelis Menton hypothesisRNAs act as ribozymesAntibodies take pa in the catalysis of many reactionsMetals are involved in attachment to enzymes and catalysts  <response>: Ribozymes are RNA molecules with catalytic activities, which acts upon phosphodiester bonds in RNA cause its hydrolysis lintron splicing event. RNAs are not protein, but meet all the classic criteria of enzymes therefore all enzymes are not protein 