Question

The two forms of vitamin B, which are the coenzymes required for carbohydrate, fats and protein metabolism are

• A. $NA{D}^{+}$ and $NAD{P}^{+}$
• B. FAD and $NAD{P}^{+}$
• C. FMN and FAD
• D. FMN and NAD

Answer 1

Answer: (C)

Flavin mononucleotide or FMN, is a biomolecule produced from riboflavin (vitamin B${}_2$) by the enzyme,e riboflavin kinase and functions as prosthetic group of various oxidoreductases including NADH dehydrogenase as well as cofactor in biological blue-light photoreceptors.
FAD or flavin adenine dinucleotide is a redox cofactor, more specifically a prosthetic group, involved in several important reactions in metabolism.
Therefore, the correct answer is option C.