Question
Explain Prothetic group , holoenzyme and enzyme.
Solution
The enzymes are proteinous molecules. They are made up of carbon, hydrogen, oxygen and nitrogen. The enzyme molecules may function in the presence of non-proteinous part called prosthetic group. The prosthetic group may be coenzyme or cofactor. Such an enzyme which functions along with co-factor is called apoenzyme. The apoenzyme and prosthetic group are collectively called holoenzyme.
Holoenzyme = Apoenzyme + Prosthetic group.