These glands are made up of 3 types of cells :
- mucus neck cells which secretes mucus
- peptic/chief cells which secretes pepsinogen
- parietal/oxyntic cells which secretes HCl and intrinsic factor
What type of cells secretes HCl?
The best-known component of gastric juice is hydrochloric acid, the secretory product of the parietal, or oxyntic cell.
What hormone stimulates secretion of HCl?
GastrinGastrin is a peptide hormone primarily responsible for enhancing gastric mucosal growth, gastric motility, and secretion of hydrochloric acid (HCl) into the stomach. It is present in G cells of the gastric antrum and duodenum.
What part of the body secretes HCl?
Gastrointestinal Structure and Function Hydrochloric acid secretion by the gastric parietal cell is necessary for pepsinogen activation (pH<5) and for the reduction of bacterial colonization. The main stimulants of gastric acid secretion are histamine, gastrin, and acetylcholine.
Which of the following stimulates secretion of HCl and pepsin?
GastrinSo, the correct answer is 'Gastrin'.
What do chief cells secrete?
pepsinogenThe chief cells secrete pepsinogen, a moderately sized zymogen protein with a molecular weight of 40,400. Pepsin, an enzyme with a molecular weight of 32,700, is formed in the acidic environment of the stomach when pepsinogen loses its activation peptides.
Why do parietal cells secrete HCl?
Parietal cells (also known as oxyntic cells) are epithelial cells in the stomach that secrete hydrochloric acid (HCl) and intrinsic factor....Parietal cellControl of stomach acidDetailsLocationStomachFunctionGastric acid, intrinsic factor secretion6 more rows
How does the body produce HCl?
In the human body, HCl is produced by the parietal cells of the stomach lining. The parietal cell cytoplasm combines with water and carbon dioxide to produce carbonic acid. The enzyme carbonic anhydrase converts one carbonic acid ion into a single hydrogen ion (H+) and a single bicarbonate ion (HCO3–).
How do parietal cells produce HCl?
0:101:29Hydrochloric acid secretion by Parietal cells in stomach - YouTubeYouTubeStart of suggested clipEnd of suggested clipEnergy for this process is obtained from oxidation of glucose carbon dioxide is derived fromMoreEnergy for this process is obtained from oxidation of glucose carbon dioxide is derived from metabolic activities of parietal cell. And from blood as well carbon dioxide combines. With water to form
Where is the Cl ion concentration higher?
a. There is a higher concentration of Cl- ions on the outside of the cell than inside the cell
Which atoms carry a charge due to a different number of protons?
Ions are atoms that carry a charge due to a different number of protons and what?
