The enzymes inside the mouth create an acidic environment. Stomach also secretes hydrochloric acid having a pH less than 7 creating an acidic environment. The pH of the gastric juices in the stomach is in the range of 2-5 which is slightly acidic in nature.

Question 15. The pH of the gastric juices released during digestion is : (a) less than 7 (b) more than 7 (c) equal to 7

The pH of the gastric juices released during digestion is : (a) less than 7 (b) more than 7 (c) equal to 7

Gastric juice, thin, strongly acidic (pH varying from 1 to 3), almost colorless liquid secreted by the glands in the lining of the stomach. Its essential constituents are the digestive enzymes pepsin and rennin, hydrochloric acid, and mucus.

The pH of gastric juice secreted by the oxyntic or parietal cells of the stomach is acidic in nature. It is acidic because the protein-digesting enzymes of the stomach such as pepsin do not work well in the basic medium so the pH is maintained between 1.5 to 3.5 in the stomach. Hence, the pH of gastric juice is 2.

Enzymes present in gastric juice of human are as follows: (1) Pepsin: In the presence of HCl, it converts protein to peptones. (2) Renin: In the presence of HCl and Ca + + ion, it converts into calcium paracaseinate. (3) Gastric lipase: It converts fats into fatty acid and glycerol.

The pH of the gastric juices released during digestion is : (a) less than 7 (b) more than 7 (c) ...

Choose the correct statements regarding the gastric juices. I. Pepsin converts proteins into peptones partially. II. Hydrochloric acid kills the germs present in food and regulates pH for digestion in the stomach. III. Mucus protects the stomach wall from the action of digestive juices.

Pepsin is a stomach enzyme that serves to digest proteins found in ingested food. Gastric chief cells secrete pepsin as an inactive zymogen called pepsinogen and rennin that digests proteins and coagulates milk respectively. Parietal cells within the stomach lining secrete hydrochloric acid that lowers the pH of the stomach.

Gastric juice contains pepsin, lipase, and rennin. Pepsin is secreted in an inactive form as pepsinogen, which is activated by HCl. Pepsin digests proteins into peptones. Lipase breaks down fats into fatty acids. Rennin is a photolytic enzyme present in the gastric juice. It helps in the coagulation of milk. Intestinal juice :