Question

Distinguish between renin and rennin.

Answer 1

Hint:The rennin is an enzyme whereas renin is a hormone which is produced by the gastric gland.Renin is the hormone that is produced by Kidney.

Complete answer:

Rennin	Renin
Rennin is also called chymosin.	Renin is also called angiotensinogen.
These are protein- digesting enzymes	It is an aspartic protease protein and enzyme.
Rennin has an optimum PH 3.4 of for the proteolysis of bone serum albumin.	Renin is involved in the renin-angiotensin aldosterone system (RAAS), which regulates the body’s water balance and blood preserve level.
It is found in proteolytic enzymes found in the gastric juice of infants.	It regulates the body’s mean arterial blood pressure.
It acts upon milk protein ‘casein’.
It is secreted by peptic (zymogen) cells of gastric glands into the stomach.	Renin originates from juxtaglomerular kidney cells.
This protein-digesting enzyme curdles milk by transforming caseinogen into insoluble casein.	The main function of renin is to hydrolyze angiotensinogen secreted from the liver into the peptide angiotensin I.

Note:The commercial form of rennin is rennet. The rennet is used in manufacturing cheese. Renin catalyzes the conversion of a plasma protein called angiotensinogen.