i think it must be 5-10%
pepsin is a enzyme secreted by the gastric glands
Yes it is. The proper name for it is Gastric Acid.
Then the gastric acid will eat holes in the stomach (called ulcers).
gastric glands
Hydrochloric acid (HCl)
Becouse colorless watery acidic digestive fluid that is secreted by various glands in the mucous membrane of the stomach and consists chiefly of hydrochloric acid, pepsin, rennin, and mucin. salman
alkaline juices is the duodenum secreted from glands in the gut wall.
Gastric juice is secreted from gastric glands, which are located in narrow tube like structures called gastric pits. Gastric juice contains hydrochloric acid, pepsinogenand mucus in a healthy adult. Hydrochloric acid is secreted by parietal cells, pepsinogen is secreted by gastric chief cells and mucus is secreted by mucus neck cells. Source: Wikipedia
gastric glands are found in the stomach.
it is secreted by stomach glands as an inactive proenzyme, pepsinogen, which is converted to pepsin by the cleavage of acid-labile linkages in the acidic (low pH) environment of the stomach.
In the case of protein digesting enzymes, known as endopeptidases, such as those secreted in the stomach (pespin), it is obvious. If they were secreted active they would digest the glands which secrete the enzymes themselves (gastric glands). Instead they must be secreted in an inactive form, which once in the stomach and exposed to HCl acid and other pepsin enzymes the pepsinogen activates and begins digesting protein.
Pepsin breaks down proteins into peptides and is found in the stomach, its secreted from the gastric glands found in the lining of the stomach.