NURSING ANM AND GNM

Detailed explanation-1: -The suffix “-ase” indicates an enzyme. In the procedure of naming an enzyme, suffix “-ase” is added after the name of the substrate specific to an enzyme. This identifies the class of an enzyme catalyzing a specific reaction. So, the correct answer is option “A” that suffix-ase is proposed by Duclaux.

Detailed explanation-2: -Enzymes are named by adding the suffix-ase to the name of the substrate that they modify (i.e., urease and tyrosinase), or the type of reaction they catalyze (dehydrogenase, decarboxylase). Some have arbitrary names (pepsin and trypsin).

Detailed explanation-3: -Except for some of the originally studied enzymes such as pepsin, rennin, and trypsin, most enzyme names end in “ase". The International Union of Biochemistry (I.U.B.) initiated standards of enzyme nomenclature which recommend that enzyme names indicate both the substrate acted upon and the type of reaction catalyzed.

Detailed explanation-4: -Etymology. The-ase suffix is a libfix derived from “diastase", the first recognized enzyme. Its usage in subsequently discovered enzymes was proposed by Émile Duclaux, with the intention of honoring the first scientists to isolate diastase.