Which of the following accurately describes chymotrypsinogen?
A) chymotrypsinogen is activated by enterokinase.
B) once activated, chymotrypsinogen is involved in protein digestion.
C) chymotrypsinogen is secreted by the endocrine pancreas.
D) all of these answers.
E) none of these answers.

Question

Quizplus · Accepted Answer

Chymotrypsinogen is an inactive precursor of the digestive enzyme chymotrypsin. Once it is activated by trypsin, it is involved in protein digestion in the small intestine. Chymotrypsinogen is not secreted by the endocrine pancreas, but rather by the exocrine pancreas. Enterokinase is responsible for the activation of trypsinogen, not chymotrypsinogen. Therefore, option B accurately describes chymotrypsinogen.

Which of the Following Accurately Describes Chymotrypsinogen