Mark the right statement among the following

1. Trypsinogen is an inactive enzyme

2. Trypsinogen is secreted by intestinal mucosa

3. Enterokinase is secreted by pancreas

4. Bile contains trypsin

(a) Trypsinogen is an inactive pencreatic enzyme that is activated, by enterokinase, enzyme secreted by intestinal mucosa. Active form of trypsinogen is called trypsin, which in turn activates other enzymes present in the pancreatic juice.