In which one of the following sets of three items each belong to the category mentioned against them?

Step-by-step solution

Rennin, helicase and hyaluronidase are all enzymes. Rennin (chymosin), secreted by the stomach is responsible for clotting milk. It acts on a soluble milk protein (caseinogen) to converts it into the insoluble form casein. Helicase unwinds double stranded helical DNA during replication. Hyaluronidase is able to digest hyaluronic acid (major glycosaminoglycan) and is therefore important in modulating the removal of cell matrix in order to facilitate cell movement or tissue organization. Thiamine is not an amino acid