In pyridoxine deficiency, tryptophan is converted to -
Ans. is 'c' i.e., Xantheurenic acid o In vitamin B6 deficiency the metabolism is shuted to xanthurenic acid. Therefore, xantheurenic acid excretion is increased in urine.
Nicotine
Acetoacetate
Xantheurenic acid
Acetyl CoA
Amino Acid Metabolism