Innate Immunity Details Quiz
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Innate Immunity Details Quiz

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@ReputableMarsh

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Questions and Answers

Which of the following best describes one of the physical barriers of innate immunity?

  • Increased vascular permeability in the lungs
  • Production of acute phase proteins in mucosal surfaces
  • Presence of intraepithelial lymphocytes (correct)
  • Secretion of interleukin-1 by the skin

    • What is the main function of lysozyme in innate immunity?

  • Increases vascular permeability
  • Breaks down peptidoglycan in bacteria (correct)
  • Stimulates production of acute phase proteins
  • Traps pathogens for removal in mucosal surfaces

    • Which protein effector found in skin and mucosal secretions is involved in the innate immune response?

  • Interleukin-6
  • Transferrin
  • Complement
  • Antimicrobial peptides (defensins & cathelicidins) (correct)

    • How do neutrophils and macrophages kill bacteria within the phagolysosome?

    <p>Via the oxidative burst involving oxygen and nitrogen radicals</p> Signup and view all the answers

    What is the role of an activated macrophage in the innate immune response?

    <p>Recognition of non-self through PAMPs and other structures</p> Signup and view all the answers

    What is the function of Interleukin-8 (IL-8) in the immune response?

    <p>Attraction/activation of neutrophils</p> Signup and view all the answers

    Which molecule is responsible for activating NK cells and influencing lymphocyte differentiation?

    <p>Interleukin-12 (IL-12)</p> Signup and view all the answers

    What is the primary function of Tumor necrosis factor-α (TNF-α) in the immune response?

    <p>Increased permeability of vascular endothelium</p> Signup and view all the answers

    In the context of non-specific phagocytic cells recognizing foreign tissue, what is the role of PRR (Pattern Recognition Receptor)?

    <p>To recognize the foreignness of objects in a general way</p> Signup and view all the answers

    What is the significance of non-specific phagocytic cells wandering through the body?

    <p>They randomly come in contact with foreign tissue</p> Signup and view all the answers

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