Anatomy: Small Intestine Structures and Functions
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Anatomy: Small Intestine Structures and Functions

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Questions and Answers

How is pepsinogen converted into the active form pepsin?

  • By high pH levels in the stomach
  • By gastrin hormones
  • By the low pH in the stomach (correct)
  • By H.pylori bacteria

    • What is the role of bile in digestion?

  • Aid in protein digestion in the small intestine
  • Increase the surface area of small intestine villi
  • Break down fat into tiny droplets for better enzyme activity (correct)
  • Neutralize the acidic chyme in the small intestine

    • What is the role of mucous in the stomach lining?

  • Breaks down proteins
  • Activates digestive enzymes
  • Prevents acid and enzymes from damaging the stomach wall (correct)
  • Regulates digestive enzymes

    • Which enzyme is responsible for breaking down proteins in the small intestine?

    <p>Trypsin</p> Signup and view all the answers

    Which organ secretes the majority of digestive enzymes involved in digestion?

    <p>Pancreas</p> Signup and view all the answers

    What is the main function of the pancreas in the digestive system?

    <p>Release pancreatic juice into the small intestine</p> Signup and view all the answers

    What do alkaline salts in pancreatic juice do in the small intestine?

    <p>Neutralize acidic chyme</p> Signup and view all the answers

    What is the main function of bile in digestion?

    <p>Emulsify fats for better digestion</p> Signup and view all the answers

    How do ridges, villi, and microvilli contribute to small intestine function?

    <p>Increase surface area for absorption</p> Signup and view all the answers

    Which enzyme is responsible for breaking down proteins into smaller chains?

    <p>Pepsin</p> Signup and view all the answers

    Which component of bile helps in emulsifying fats for digestion?

    <p>Alkaline salts</p> Signup and view all the answers

    What is the composition of pancreatic juice primarily responsible for?

    <p>Digesting proteins and fats</p> Signup and view all the answers

    What is the role of bile in digestion?

    <p>Emulsify fats for better digestion and absorption</p> Signup and view all the answers

    Which enzyme is primarily responsible for breaking down proteins in the stomach?

    <p>Pepsin</p> Signup and view all the answers

    What is the primary function of the small intestine in the digestion process?

    <p>Absorption of nutrients</p> Signup and view all the answers

    What are the main functions of the pancreas in digestion?

    <p>Secretion of digestive enzymes and bicarbonate</p> Signup and view all the answers

    Which component is found in pancreatic juice?

    <p>Amylase</p> Signup and view all the answers

    What is the function of pancreatic lipase in digestion?

    <p>Break down fats into fatty acids and glycerol</p> Signup and view all the answers

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