Video Transcript
Pepsinogen is secreted by the cells
that line the stomach. What is pepsinogen converted
into?
Pepsinogen is a precursor to a very
important digestive enzyme found in the stomach. Stomach acid consists of
hydrochloric acid mixed with pepsinogen. Hydrochloric acid keeps the pH of
the stomach between 1.5 and 2.5. Pepsinogen is a precursor molecule
that is converted into the enzyme pepsin in the highly acidic environment of the
stomach. Pepsin breaks down proteins in food
into smaller polypeptides that can further be broken down into single amino acids in
the intestine.
In response to the question “What
is pepsinogen converted into?,” the correct answer is pepsin.
