The typical coloration of the feces is due to A) bile salts. B) undigested cellulose. C) aqueous NaHCO₃ secretion. D) bilirubin. E) disintegrated epithelial cells.

Question

Quizplus · Accepted Answer

The typical coloration of feces is due to the presence of bilirubin, a yellow pigment produced during the breakdown of hemoglobin in the liver. Bilirubin is excreted into the intestines as a component of bile, which gives feces its characteristic brown color. Option A is partially correct as bile salts also contribute to the coloration of feces. However, bilirubin is the primary pigment responsible for the coloration. Option B is incorrect as undigested cellulose would not contribute to the coloration of feces. Option C is incorrect as there is no such secretion as aqueous NaHCO₃ secretion. Option E is incorrect as disintegrated epithelial cells would not contribute to the coloration of feces.

The Typical Coloration of the Feces Is Due to