Under normal conditions,tryptophan that is not reabsorbed in the intestine is removed from the body as:
A) Indican in the urine
B) Indole in the liver
C) Indole in the feces
D) Serotonin in the urine

Question

Quizplus · Accepted Answer

Tryptophan that is not reabsorbed in the intestine is metabolized by gut bacteria, which convert it to indole. Indole is excreted in the feces as indole and its derivatives, such as skatole and indole-3-acetic acid. Therefore, the correct answer is C.

Under Normal Conditions,tryptophan That Is Not Reabsorbed in the Intestine