Prosthetic groups are organic compounds that are distinguished from other cofactors in that they are tightly bound to the apoenzyme. Haem is one such prosthetic group that forms a part of the active site of which of the following enzymes?

Step-by-step solution

Prosthetic groups are organic compounds that are tightly bound to the apoenzyme. According to NCERT, in enzymes like peroxidase and catalase, which catalyse the breakdown of hydrogen peroxide to water and oxygen, haem is the prosthetic group and it is a part of the active site of the enzyme. Carboxypeptidase requires a metal ion (zinc) as a cofactor. Dehydrogenases typically utilise coenzymes like NAD or NADP, which are transiently bound. Hexokinase requires magnesium ions. Answer: Peroxidase