Which of the following products are absorbed into the circulation after digestion of proteins?

Question

Quizplus · Accepted Answer

Proteins are broken down to amino acids or dipeptides/tripeptides by the digestive enzymes in the small intestine. However, only free amino acids can be directly absorbed into the circulation. Dipeptides and tripeptides need to be further broken down to free amino acids by enzymes in the intestinal cells before they can be absorbed into the circulation. Therefore, the correct answer is D, as free amino acids are the main product absorbed, but a few dipeptides and tripeptides may also be absorbed after being broken down.

Which of the Following Products Are Absorbed into the Circulation