Question

Write the function of following (1) pepsin (2) mucus (3) hydrochloric acid

Answer 1

Answer:

The stomach plays a critical role in the early stages of food digestion. Specifically, the stomach lining secretes a mixture of compounds, collectively known as "gastric juice." Gastric juice comprises water, mucus, hydrochloric acid, pepsin, and intrinsic factor. Of these 5 components, pepsin is the principal enzyme involved in digestion of protein. However, pepsin is released in its inactive form, or zymogen form, known as pepsinogen. By secreting pepsin in its inactive form, the stomach prevents digestion of protective proteins in the lining of the digestive tract. Specific cells within the gastric lining, known as the chief cells, release pepsin when stimulated by gastrin, another gastrointestinal hormone, and acetylcholine, a neurotransmitter. As chief cells release pepsinogen, activation by an acidic environment is necessary. Hydrochloric acid, another component of the gastric juice, plays a crucial role in creating the acidic environment required for pepsin activity. Cells that are known as parietal cells release hydrogen ions through a proton pump. Parietal cells also release chloride ions to form hydrochloric acid. Similar to chief cells, gastrin and acetylcholine also stimulate parietal cells to release hydrochloric acid. The most potent activator of the parietal cells, however, is histamine. When both pepsinogen and hydrochloric acid are present in the gastric juice, pepsin takes its active form.

Answer 2

Answer:

pepesin is a protein

mucus is providing protection wall of stomach

Hydrochloric acid is provide medium in stamch to fuctioning for HCl

explanation

1.pepsin->Pepsin is an endopeptidase that breaks down proteins into smaller amino acids. It is produced in the chief cells of the stomach lining and is one of the main digestive enzymes in the digestive systems of humans and many other animals, where it helps digest the proteins in food.

2.Mucus->Gastric mucus is a gel-mucous barrier secreted by epithelial cells and glandular cells in the stomach wall. It acts as part of a barrier that protects the stomach wall from the acid and digestive enzymes within the stomach lumen.

3.Hydrochloric acid->Stomach secretions are made up of hydrochloric acid, several enzymes, and a mucus coating that protects the lining of your stomach. Hydrochloric acid helps your body to break down, digest, and absorb nutrients such as protein. It also eliminates bacteria and viruses in the stomach, protecting your body from infection