Multiple Choice
Which of the following is true about digestive enzymes?
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23. The Digestive System
Introduction to the Digestive System
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Which of the following statements about the pancreatic enzyme trypsin is true?
A
Trypsin is responsible for the digestion of carbohydrates.
B
Trypsin is activated from trypsinogen by the enzyme enterokinase.
C
Trypsin is produced by the liver and stored in the gallbladder.
D
Trypsin is secreted in its active form directly into the small intestine.
Verified step by step guidance1
Understand the role of trypsin: Trypsin is a proteolytic enzyme, meaning it helps break down proteins into smaller peptides. It is not involved in carbohydrate digestion.
Identify the source and activation of trypsin: Trypsin is produced in the pancreas as an inactive precursor called trypsinogen. It is not produced by the liver nor stored in the gallbladder.
Learn about the activation process: Trypsinogen is converted into active trypsin by the enzyme enterokinase, which is found in the small intestine.
Clarify the secretion process: Trypsin is secreted by the pancreas into the small intestine in its inactive form (trypsinogen) to prevent autodigestion of the pancreas.
Evaluate the statements: Based on the above information, the true statement is that trypsin is activated from trypsinogen by the enzyme enterokinase.
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