Biology: Small Intestine Function and Structure
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Questions and Answers

What structure in the small intestine significantly increases its absorptive surface area?

  • M-cells
  • Goblet cells
  • Paneth cells
  • Villi and microvilli (correct)
  • Which cells in the small intestine are primarily responsible for regulating the absorption of nutrients?

  • Enteroendocrine cells
  • Enterocytes (correct)
  • Goblet cells
  • Paneth cells
  • Which absorption mechanism is utilized for fats in the small intestine?

  • Endocytosis
  • Active transport
  • Facilitated diffusion
  • Passive diffusion (correct)
  • What role do goblet cells play in the small intestine?

    <p>Mucus secretion</p> Signup and view all the answers

    What is the primary function of Paneth cells in the small intestine?

    <p>Secreting enzymes and antimicrobial peptides</p> Signup and view all the answers

    How do monosaccharides and amino acids primarily enter the small intestine's enterocytes?

    <p>Active transport</p> Signup and view all the answers

    What is the approximate total surface area available for absorption in the small intestine?

    <p>200 m2</p> Signup and view all the answers

    What is the function of enteroendocrine cells in the small intestine?

    <p>Secrete hormones</p> Signup and view all the answers

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