Read the following statements carefully: (I) Catalytic activity is lost when the cofactor is removed from the enzyme. (II) Zinc is a co-enzyme that forms coordination bonds with side chains at the active site of carboxypeptidase. (III) The protein portion of the enzyme is called the holoenzyme. (IV) Co-enzymes are organic compounds whose association with the apoenzyme is only transient. How many of the above statemen

Step-by-step solution

Statement (I) is correct: Cofactors are crucial for the catalytic activity of the enzyme, and this activity is lost if the cofactor is removed. Statement (II) is incorrect: Zinc is a metal ion cofactor, not a co-enzyme. Co-enzymes are organic compounds. Statement (III) is incorrect: The protein portion of the enzyme is called the apoenzyme. The complete catalytically active enzyme with its bound cofactor is called the holoenzyme. Statement (IV) is correct: Co-enzymes are organic compounds that associate with the ap