Why do all enzymes end in ASE?

Enzymes are usually given names based on the reactions they catalyze or the compound they are reacting on. ... Some enzymes which have been known longer have older names that don't end in "ase." For example: pepsin, trypsin, and chrymotrypsin which are all enzymes localized in the digestive tract. read more

Yes, the names of most enzymes end in -ase. Thus, if you have a name of something an dyou don't know what it is and it ends in -ase, it is probably an enzyme. read more

Look up -ase in Wiktionary, the free dictionary. The suffix-ase is used in biochemistry to form names of enzymes. The most common way to name enzymes is to add this suffix onto the end of the substrate, e.g. an enzyme that breaks down peroxides may be called peroxidase; the enzyme that produces telomeres is called telomerase. read more

The suffix "-ase" is added to the name of the substrate the enzyme acts on. Depending on the name of the substrate, some of its last letters might be replaced with "-ase." For example, lactase is the enzyme that acts on lactose; sucrase acts on sucrose. read more