What is the Difference Between Renin and Rennin?

The main difference between renin and rennin lies in their function and origin. Renin is a hormone involved in the regulation of arterial blood pressure, while rennin is an enzyme that plays a role in milk coagulation. Here are the key differences between the two:

• Renin:
• Hormone produced by the kidneys.
• Also known as angiotensinogen.
• Involved in the renin-angiotensin-aldosterone system (RAAS), which regulates the body's water balance and blood pressure level.
• Secreted by peptic (zymogen) cells of gastric glands into the stomach.
• Main function is to hydrolyze angiotensinogen secreted from the liver into the peptide angiotensin I.
• Rennin:
• Enzyme found in the gastric juice of infants and ruminant animals.
• Also known as chymosin.
• Protein-digesting enzyme that curdles milk by converting caseinogen into insoluble casein.
• Produced by the peptic cells of gastric glands present in the stomach.
• Used in the commercial form of rennet, which is used in manufacturing cheese.

In summary, renin is a hormone that regulates blood pressure, while rennin is an enzyme that helps in the digestion of milk protein and is used in cheese production.

Comparative Table: Renin vs Rennin

Here is a table comparing the differences between renin and rennin:

In summary, renin is a hormone involved in regulating blood pressure and electrolyte balance, while rennin is an enzyme involved in the digestion of milk.