Digestive System I: The Upper Gastrointestinal Tract


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What do amylase and pepsin have in common?

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1. Which of the following is not a function of hydrochloric acid in gastric juice?

2. When does maximum secretion of hydrochloric acid and pepsinogen in the stomach occur?

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About This Quiz & Worksheet

The upper gastrointestinal tract enables ingestion and digestion. The practice questions in this quiz/worksheet combo will assess your understanding of its structures and functions. Some terminology you'll be tested on include amylase, pepsin, hydrochloric acid and pepsinogen.

Quiz & Worksheet Goals

The quiz questions will ask you about:

  • The roles of amylase and pepsin
  • The function of hydrochloric acid in the stomach
  • The timing of pepsinogen and hydrochloric acid secretion
  • The muscular valve that controls the flow of food into the small intestine

Skills Practiced

  • Reading comprehension - ensure that you draw the most important information from the related lesson about the upper GI tract
  • Defining key concepts - ensure that you can accurately define amylase and pepsin
  • Information recall - access your knowledge of an enzyme's inactive precursor that requires a change to be activated

Additional Learning

Check out the lesson called Digestive System I: The Upper Gastrointestinal Tract to explore the process of digestion more closely. You'll be able to do the following after studying the material:

  • Define amylase and pepsin and explain their functions
  • Define esophagus and its role in digestion
  • State the purpose of the epiglottis
  • Explain the source and role of hydrochloric acid in the stomach