Question

Curdling of milk in stomach takes place due to

• A. Rennin
• B. Trypsin
• C. Chymotrypsin
• D. Ptyalin

Answer 1

The correct option is A Rennin

Renin is the enzyme which helps in the curdling of milk in the stomach for easy digestion of proteins of the milk. It is produced by gastric chief cells. Renin is secreted in its inactive form known as prorenin. The HCl present in the stomach converts the prorenin into renin. Rennin converts casein into solid calcium paracaseinate in presence of Ca++ so that pepsin can reduce it to proteoses absent peptones.

So, the correct answer is option A.