The digestion of proteins begins in the _____ and ends in the _____.
A)stomach; pancreas
B)pancreas; small intestine
C)stomach; small intestine
D)small intestine; liver

Question

Quizplus · Accepted Answer

The digestion of proteins begins in the stomach with the help of enzymes and stomach acid. The partially digested proteins then enter the small intestine, where they are further broken down by enzymes from the pancreas and small intestine. The end products of protein digestion are amino acids, which are absorbed into the bloodstream through the walls of the small intestine. The liver plays a role in processing and using these amino acids, but it is not directly involved in the digestion of proteins. The digestion of proteins begins in the stomach, where the acidic environment activates the enzyme pepsin. Pepsin begins to break down the proteins into smaller peptides. The partially digested proteins then move into the small intestine, where pancreatic enzymes continue to break them down into amino acids, which can be absorbed into the bloodstream. Therefore, the digestion of proteins begins in the stomach and ends in the small intestine.

The Digestion of Proteins Begins in the _____ and Ends