DIGESTION

QUESTION:

Trypsinogin is converted into trypsin by the activity of:

OPTIONS:

  • Goblet cells
  • Absorbtive cells
  • Enteropeptidase
  • Enterokinase

CORRECT OPTION:

Enteropeptidase

EXPLANATION:

Trypsinogen is the precursor form of the pancreatic enzyme trypsin. It is found in pancreatic juice, along with amylase, lipase and chymotrypsinogen. It is activated by enteropeptidase, which is found in the intestinal mucosa, to form trypsin. Once activated, the trypsin can activate more trypsinogen into trypsin. Trypsin cleaves the peptide bond on the carboxyl side of basic amino acids such as arginine and lysine.

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