Pepsin becomes inactive when it reaches the small intestine where the pH is between 7 and 9. It functions best when in an acidic environment like the stomach.
food will be absorbed
the pepsin would become innactive
Yes. The precursor of pepsin is called pepsinogen; it is produced by stomach cells and then activated by the HCl in the stomach. Pepsin works best at very low pH.... e.g. acid conditions of the stomach. The small intestine has glands that produce neutralize the acid. Pepsin denatures at pH's of 5,0 or higher..... so effectively it is neutralized when the chyme enters the small intestine.
The enzyme that catalyzes the digestion of peptides in the small intestine is pepsin. Pepsin is released by the mucosal lining of the stomach.
Food enters the small intestine first. It enters the duodenum in the small intestine.
pepsin and all other digestive enzymes are neutralized by the small intestine
Yes.
expressed in the stomach but not expressed in the small intestine
Small intestine is where the food enters the blood.
The graph of pepsin and trypsin activity would likely show that pepsin is more active in acidic conditions, typical of the stomach, while trypsin exhibits optimal activity in a more neutral to slightly alkaline environment, characteristic of the small intestine. This difference indicates that the stomach's acidity facilitates protein digestion by pepsin, whereas trypsin operates effectively when the pH rises after chyme enters the small intestine. Consequently, the graph would highlight the contrasting pH preferences of these digestive enzymes and their respective roles in the digestive process.
Pancreas
small intestine