Secreted together with gastric juice, by the stomach mucosa, pepsinogen is transformed into pepsin by the action of the acidic environment of the stomach, due to HCl also present in stomach juice.
Pepsin is a digestive enzyme that is produced by the walls of the stomach, being activated by gastric juice, and whose function is to break proteins down into simpler peptides (amino acids).
It only reacts in acidic medium. Therefore, the stomach also produces hydrochloric acid (HCl). When in contact with hydrochloric acid, pepsinogen (an "inactive" enzyme that is present in gastric juice) turns into pepsin, which is "active".
With this information, we can conclude that pepsin is a specific digestive enzyme for digestion, produced in the stomach.
Learn more about Enzyme for digestion in https://brainly.com/question/10475117
