Question

2. Vitamin is a precursor for:
A. Haem
C. FAD
B. ATP
D. Mg2+

Answer 1

ATP

Explanation:

Vitamin is a precursor for ATP,NAD+,FAD+

Co-enzymes are the derivatives of vitamins

Answer 2

Answer:

The correct option is C. FAD (Flavin adenine dinucleotide).

Explanation:

Vitamins (Vit. B2) are the cofactor of FAD. Vitamin B2 or riboflavin is a water soluble vitamin which acts as a cofactor for many oxidoreductases that are found in animals, plants, fungi and bacteria. Riboflavin or Vit. B2 is required to convert carbohydrates into energy sources.

Vit. B2 is converted to FAD with the help of two enzymes, Flavokinase and flavinnucleotide pyrophosphorylase. Flavokinase converts Vit. B2 into FMN and by the action of flavinnucleotide pyrophosphorylase, it is converted to FAD.  

Therefore, the correct answer is C

#SPJ2.