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The inactive precursor of pepsin is called pepsinogen. It is secreted by the gastric chief cells in the stomach lining and is activated to pepsin in the presence of hydrochloric acid (HCl) in the gastric environment. This activation process prevents the enzyme from digesting the proteins in the cells that produce it. Pepsin then plays a crucial role in protein digestion by breaking down complex proteins into smaller peptides.

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Why is pepsin secreted as an inactive precursor called pepsinogen?

Pepsinogen is secreted as an inactive precursor because pepsin is a proteolytic enzyme that can damage the cells that produce it. By secreting pepsinogen, the stomach protects itself from self-digestion until it is needed to break down proteins in the stomach.


What is the source of pepsin?

Pepsin is an enzyme which is secreted by Zymogen cells of the stomach. First it is secreted in an inactive form called Pepsinogen. After that Hydrochloric acid (HCl) activates it into pepsin. FUNCTION:Its function is to hydrolyse the proteins to yield peptide.


What is the inactive from of the enzyme pepsin?

The inactive form of pepsin is called pepsinogen.


What is the difference between pepsin and pepsinogen?

Pepsin is a powerful protein digesting enzyme which is far too dangerous in its active form so it is released in an inactive pepsinogen form by the cell and activated only in the digestive tract where it is required to be active.


What is the site of pepsin production?

Pepsin is produced in the stomach, specifically by the chief cells located in the gastric glands of the gastric mucosa. It is secreted as an inactive precursor called pepsinogen, which is activated to pepsin in the presence of gastric acid (hydrochloric acid). This activation occurs in the acidic environment of the stomach, enabling pepsin to play its role in protein digestion.


What is the relation between pepsinogen and hydrochloric acid?

Pepsinogen is an inactive precursor of the enzyme pepsin, which is responsible for breaking down proteins in the stomach. Hydrochloric acid activates pepsinogen, converting it into pepsin. The presence of hydrochloric acid in the stomach helps to create an acidic environment that allows pepsin to function optimally.


Why can pepsin not be produced in its active form?

Pepsin degrades proteins so if it was active it would immediately begin digesting all the proteins in the cell. Therefore it is produced from a precursor known as a zymogen or proenzyme. Pepsin's proenzyme form is pepsinogen which is transformed to the activated pepsin protein.


What is pepsinogen made of?

Pepsinogen is a zymogen, or inactive precursor, of the enzyme pepsin, and it is primarily composed of a long chain of amino acids, which are the building blocks of proteins. It is produced and secreted by the chief cells in the stomach lining. When exposed to the acidic environment of the stomach, pepsinogen is activated into pepsin, which then aids in the digestion of proteins.


What effect would decreased incubation temperatures have on pepsin?

Pepsin activity would decrease and at a very low temperature pepsin would be inactive.


Is pepsin a polypeptide?

Pepsinogen is the proenzyme of pepsin. Pepsinogen is inactive, it is metabolized into the enzyme pepsin which break down proteins into small molecules.


What effect would decrease incubation temperature have on pepsin activity?

Pepsin activity would decrease and at a very low temperature pepsin would be inactive.


What is the functiom of pepsinogen?

Pepsinogen is the precursor for Pepsin, an enzyme for the degradation of protein.