In which part of the small intestine does most of the chemical digestion occur?
A) Ileum
B) Jejunum
C) Duodenum
D) Both a and c above

Question

Quizplus · Accepted Answer

The majority of chemical digestion takes place in the duodenum, which is the first section of the small intestine. This is where digestive enzymes from the pancreas and bile from the liver/gallbladder mix with chyme (partially digested food) from the stomach to break down carbohydrates, proteins, and lipids into smaller molecules for absorption in the small intestine. The ileum and jejunum are responsible for further absorption of nutrients and water.

In Which Part of the Small Intestine Does Most of the Chemical