Given below are two statements : Statement I : Catalytic activity is lost when the co-factor is removed from the enzyme, which testifies that co-factors play a crucial role in the catalytic activity of the enzyme. Statement II : Zinc acts as a prosthetic group for the proteolytic enzyme carboxypeptidase because it is an organic compound tightly bound to the apoenzyme. In the light of the above statements, choose the

Step-by-step solution

Statement I is true because co-factors are non-protein constituents bound to the enzyme to make it catalytically active. When the co-factor is removed from the enzyme, its catalytic activity is lost, proving its crucial role. Statement II is false because Zinc is a metal ion, not an organic compound. Co-factors are classified into three categories: prosthetic groups, co-enzymes, and metal ions. Prosthetic groups are organic compounds tightly bound to the apoenzyme. Zinc acts as a metal ion co-factor for the proteol