Question

What is the role of enterokinase in digestion?

• A. Converts pepsinogen to pepsin
• B. Emulsifies fats
• C. Activates trypsinogen to trypsin
• D. Breaks down carbohydrates

Hint:

Enterokinase is essential for protein digestion, as it activates trypsinogen, which in turn activates other proteases to break down proteins.

Answer 1

The Correct Option is C

Enterokinase is an enzyme secreted by the duodenum that plays a critical role in protein digestion. It activates trypsinogen, an inactive enzyme, by converting it into trypsin, which then helps in the digestion of proteins in the small intestine. - Option (A) is incorrect because the conversion of pepsinogen to pepsin is facilitated by acid in the stomach, not by enterokinase.
- Option (B) is incorrect because emulsification of fats is done by bile.
- Option (D) is incorrect as carbohydrate breakdown is facilitated by enzymes like amylase, not enterokinase.
Thus, the correct answer is option (C) Activates trypsinogen to trypsin.