THORAX ABDOMEN AND PELVIS

MEDICAL

RECTUM AND ANUS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is the enzyme secreted into the stomach to break down proteins?
A
amylase
B
pepsin
C
protease
D
peptidase
E
lipase
Explanation: 

Detailed explanation-1: -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. Parietal cells within the stomach lining secrete hydrochloric acid that lowers the pH of the stomach. A low pH (1.5 to 2) activates pepsin.

Detailed explanation-2: -Pepsin is the chief milk protein-digesting enzyme in humans. Pepsin acts on soluble casein and converts it into soluble paracasein and whey protein. In the presence of calcium ions, soluble paracasein is precipitated into calcium paracaseinate (insoluble). It is called as “milk curdling.”

Detailed explanation-3: -Pepsin is a protease or protein-digesting enzyme. Pepsin cleaves proteins into smaller polypeptides. The ingredients of gastric juice are kept inactive until they are released into the cavity (Lumen) of the stomach. They are produced by cells in the gastric glands of the stomach.

Detailed explanation-4: -Final answer: In the human digestive system, the enzymes pepsin and trypsin are secreted by the stomach and pancreas respectively.

There is 1 question to complete.