Which is an enzyme activator secreted by the intestinal glands:
- A. Amylase
- B. Pepsinogens
- C. Enterokinase
- D. Lipase
Explanation
Enterokinase from the duodenal lining converts trypsinogen into active trypsin, which then activates the other pancreatic proenzymes in turn. Pepsinogen is itself an inactive precursor rather than an activator, and it is activated by hydrochloric acid in the stomach, which makes it the tempting answer. Amylase and lipase are ordinary digestive enzymes.
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