NTA Abhyas NEET2020ChemistryBiomoleculesPractice
Prosthetic groups differ from co-factors in that the former is
Options
- Atightly bound to the coenzyme
- Btightly bound to the apoenzyme
- Cloosely bound to the inorganic catalyst
- Dtightly bound to the active site
Correct answer
B. tightly bound to the apoenzyme
Step-by-step solution
Enzymes are composed of one or several polypeptide chains. However, there are a number of cases in which non-protein constituents called cofactors are bound to the the enzyme to make the enzyme catalytically active. In these instances, the protein portion of the enzymes is called the apoenzyme. Three kinds of cofactors may be identified: prosthetic groups, co-enzymes and metal ions.