Mechanical and Chemical Digestion in the Mouth
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Questions and Answers

What is the primary function of the stomach in the digestive process?

  • To break down food into smaller particles
  • To release food into the large intestine
  • To absorb nutrients into the bloodstream
  • To mix saliva, food, and gastric juice to form chyme (correct)

What is the name of the enzyme that begins the digestion of proteins in the stomach?

  • Pepsin (correct)
  • Intrinsic factor
  • Gastric lipase
  • HCl

What is the term for the movement of food from the mouth into the stomach?

  • Deglutition (correct)
  • Peristalsis
  • Mastication
  • Gastric contraction

What is the purpose of HCl in the gastric juice?

<p>To denature proteins and kill bacteria (C)</p> Signup and view all the answers

How many stages are involved in the process of swallowing?

<p>Three (A)</p> Signup and view all the answers

What is the primary function of gastric emptying?

<p>Transferring chyme into the small intestine (D)</p> Signup and view all the answers

What is the primary function of pancreatic juice in the small intestine?

<p>To buffer acidic gastric juice and create the proper pH for digestive enzymes (A)</p> Signup and view all the answers

What is the role of enterokinase in the small intestine?

<p>To activate trypsinogen (C)</p> Signup and view all the answers

Which of the following is NOT a function of the liver?

<p>Protein synthesis (C)</p> Signup and view all the answers

What is the primary component of bile?

<p>Water (C)</p> Signup and view all the answers

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