Gastric Glands and Vitamin B12 Absorption
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Questions and Answers

What is the function of intrinsic factor in the body?

  • To form a pore-like structure in the membranes of target cells
  • To defend the body against infectious agents and foreign substances
  • To protect vitamin B12 from degradation by stomach acids and facilitate its uptake (correct)
  • To puncture holes in the cell membranes of bacteria and viruses

    • Which type of cells in the stomach lining release intrinsic factor?

  • Lymphocytes
  • Parietal cells (correct)
  • Basophils
  • Neutrophils

    • What is the purpose of the membrane attack complex (MAC) proteins?

  • To puncture holes in the cell membranes of pathogens (correct)
  • To form a complex with vitamin B12
  • To facilitate the uptake of vitamin B12
  • To defend the body against infectious agents and foreign substances

    • What is the primary function of the immune system?

    <p>To defend the body against infectious agents and foreign substances</p> Signup and view all the answers

    Which of the following cells is NOT a type of white blood cell?

    <p>Parietal cells</p> Signup and view all the answers

    What is the role of macrophages in the immune system?

    <p>To mature from monocytes</p> Signup and view all the answers

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