NTA Abhyas NEET2020ChemistryBiomoleculesPractice
Select the correct combination from the following.
Options
- AMetal ions irreversibly attached with apoenzyme - Activators.
- BNon-protein organic part attached tightly to the Apoenzyme - Prosthetic group.
- CProtein organic part attached loosely to the apoenzyme - Coenzyme.
- DAll of these.
Correct answer
B. Non-protein organic part attached tightly to the Apoenzyme - Prosthetic group.
Step-by-step solution
Protein part of enzyme is called apoenzyme. Prosthetic groups are organic compounds and are distinguished from other cofactors in that they are tightly bound to the apoenzyme. Coenzymes are also organic compounds but their association with the apoenzyme is only transient. Metal ions forms coordinate bonds with side chains at the active site are called activators.