Question

Nicotinamide can be synthesised in human body from

• A. Fructose
• B. Lactose
• C. Tyrosine
• D. Tryptophan

Answer 1

The correct option is D Tryptophan

Tryptophan is an aromatic amino acid which acts as a precursor to the neurotransmitter. It helps in the biosynthesis of proteins. It also helps in the synthesis of niacin and auxin. It also acts as a precursor of nicotinamide. Tryptophan is an amino acid regularly found in the body, is converted into niacin. Niacin is then converted to nicotinamide, which the body uses for various purposes.

So, the correct answer is option D.