Immune System: Innate and Adaptive Defenses
12 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the main difference between B-lymphocytes and T-lymphocytes?

  • B-lymphocytes are involved in humoral immunity while T-lymphocytes are involved in cellular immunity (correct)
  • B-lymphocytes are involved in cellular immunity while T-lymphocytes are involved in humoral immunity
  • B-lymphocytes are involved in adaptive immunity while T-lymphocytes are involved in innate immunity
  • B-lymphocytes are involved in innate immunity while T-lymphocytes are involved in adaptive immunity
  • What is the primary function of the external body membranes like skin and mucosae?

  • To produce antibodies against pathogens
  • To activate phagocytes and antimicrobial proteins
  • To respond to all foreign substances within minutes of invasion
  • To prevent physical entry of microorganisms (correct)
  • What is the characteristic of the secretions of the skin?

  • Alkaline pH that promotes bacterial growth
  • Neutral pH that has no effect on bacterial growth
  • Basic pH that inhibits bacterial growth
  • Acidic pH that inhibits bacterial growth (correct)
  • What is the characteristic of the innate immune system?

    <p>It is nonspecific and responds quickly to pathogens</p> Signup and view all the answers

    What is the function of the immune system?

    <p>To combat pathogens and respond to all foreign substances</p> Signup and view all the answers

    What are the mucous membranes involved in?

    <p>Lining all body cavities that open to the exterior</p> Signup and view all the answers

    What is the function of lysozyme found in saliva and lacrimal fluid?

    <p>Destroy bacteria</p> Signup and view all the answers

    What is the main function of sticky mucus in the respiratory tract?

    <p>Trap microorganisms</p> Signup and view all the answers

    What type of cells are macrophages derived from?

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

    What is the function of defensins produced by neutrophils?

    <p>Act as antibiotic-like chemicals</p> Signup and view all the answers

    What is the term for the process by which phagocytes engulf and digest foreign particles?

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

    What is the purpose of opsonization?

    <p>To coat foreign particles with proteins</p> Signup and view all the answers

    More Like This

    The Immune System and Immunology
    15 questions
    Immunology and Immune System
    9 questions
    Immunology Chapter 2: Immune System Cells and Organs
    48 questions
    Use Quizgecko on...
    Browser
    Browser