Biology · Nutrition

Pancreatic zymogens are inactive enzyme precursors produced by the pancreas. They are transported to the small intestine, where they are activated and absorbed. This activation is initiated by enterokinase, an enzyme present in the small intestine, which converts trypsinogen into trypsin. Trypsin then activates other zymogens, such as chymotrypsinogen and procarboxypeptidase. The stomach and large intestine are not involved in this activation process. The stomach is involved in initial protein digestion through pepsin, while the large intestine focuses on water reabsorption and waste processing.

Incorrect. The stomach primarily deals with pepsinogen activation and not pancreatic zymogens; neither the zymogens enter the stomach.

Incorrect. While zymogens are produced in the pancreas, they are not activated there.

Correct. The small intestine contains enterokinase, which activates trypsinogen to trypsin, initiating the activation of other pancreatic zymogens.

Incorrect. The large intestine is primarily involved in water absorption and does not activate pancreatic zymogens.