Botany - Biomolecules Question with Solution | TestHub
Consider the following statements:
Coenzyme or metal ion that is tightly bound to enzyme protein is called prosthetic group.
A complete catalytic active enzyme with its bound prosthetic group is called apoenzyme.
Select the correct option.NEET 2019 (All India)
Options:
Answer:
Solution:
Many enzymes show catalytic activity only in association with certain non-protein substances. Those substances are known as cofactors (cofactors may be simple metal ions, e.g. Mg++ or K+ etc.). The enzymes which works only in presence of cofactors are called apoenzymes. An organic non-protein cofactor which is easily separable from the apoenzyme is called coenzyme, and the non-protein organic cofactor that is tightly bound to and non-dissociable from the enzyme is termed as prosthetic group, e.g. biotin of carboxylases, haem of hemoglobin, etc.
