NEET Biology Biomolecules Based Practice Questions & Answers with Viewers Discussion and Detailed Explanation

Question & Answer Discuss:

Which of the following statement(s) is/are incorrect?

1. Nearly 1/3rd of all enzymes requires the presence of metal ions for catalytic function.
2. Metal ions form coordinate bond with side chain at active site of metalloenzyme and at the same time form one or more coordinate bonds with the substrate.
3. NAD and NAD (coenzymes) contain niacin (vit.B3 )
4. Coenzymes are organic compounds but their association with the apoenzyme is only transient, usually occurring during catalysis.

(a) Only (iii) and (iv)

(b) All of these

(c) Only (iv)

(d) None of these