Unit One Chapter Four 3rd SEC. Quiz 3

117 Questions | Total Attempts: 22

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Unit One Chapter Four 3rd SEC. Quiz 3

Immune System Mechanism in Man


Questions and Answers
  • 1. 
    Naturally acquired immunity would be mostly acquired through which of the following processes?
    • A. 

      Vaccination

    • B. 

      Drinking colostrum

    • C. 

      Natural health

    • D. 

      Infection with a diseased-causing microorganism followed by recovery.

  • 2. 
    Which of the following convey the longest lasting immunity to an infectious agent?
    • A. 

      Naturally acquired passive immunity (occurs during pregnancy, in which certain antibodies are passed from the maternal blood into the fetal bloodstream)

    • B. 

      Artificially acquired passive immunity (the injection of antibodies)

    • C. 

      Naturally acquired active immunity (a disease-causing organism, that stimulates the immune system to develop protective immunity against that organism)

    • D. 

      All of these

  • 3. 
    Which of the following immune cells/molecules are most effective at destroying intracellular pathogens?
    • A. 

      Helper T-cells

    • B. 

      B cells

    • C. 

      Antibodies

    • D. 

      Cytotoxic T-cells

  • 4. 
    B-cells that produce and release large amounts of antibody are called …….
    • A. 

      Memory cells

    • B. 

      Basophils

    • C. 

      Plasma cells

    • D. 

      Natural killer cells

  • 5. 
    Cell mediated immunity is carried out by………….. while humoral immunity is mainly carried out by………………..
    • A. 

      T cells / B cells

    • B. 

      Antibodies / Antigens

    • C. 

      B cells / T cells

    • D. 

      Antibodies / Phagocytes

  • 6. 
    B-cells différentiâtes to form ………….
    • A. 

      Plasma cells

    • B. 

      Natural killer cells

    • C. 

      Plasma and memory cells

    • D. 

      Phagocytic cell

  • 7. 
    Which of the following statements is incorrect regarding plasma cells?
    • A. 

      Plasma cells are short-lived activated cells

    • B. 

      Plasma cells have surface receptors

    • C. 

      The precursor of the plasma cell is the B-cell

    • D. 

      Plasma cells secrete antibodies

  • 8. 
    What is not required in the innate immune responses?
    • A. 

      Antigen

    • B. 

      Previous contact

    • C. 

      Phagocytic cells

    • D. 

      Pathogen

  • 9. 
    Which type of immune cells is responsible for eradicating intracellular pathogens?
    • A. 

      Natural killer cells

    • B. 

      Basophils

    • C. 

      B-lymphocytes

    • D. 

      Plasma cells

  • 10. 
    Which immune cell is responsible for the quickest release of histamine that causes the red itchy welts associated with allergies?
    • A. 

      Mast cell

    • B. 

      B-lymphocyte

    • C. 

      T-lymphocyte

    • D. 

      Macrophage

  • 11. 
    Which of the following is NOT true regarding innate immunity?
    • A. 

      Broadly specific against the foreign antigen

    • B. 

      Exist prior to the exposure of the antigens

    • C. 

      Have memory cells

    • D. 

      All of the above

  • 12. 
    Which of the following is not an example of innate immunity?
    • A. 

      Phagocytosis

    • B. 

      Antibodies

    • C. 

      Interferon

    • D. 

      Mucus membrane

  • 13. 
    The adaptive immunity that involves the production of antibodies for the clearance of antigen is called ……..
    • A. 

      Cell-mediated cytotoxicity

    • B. 

      Cell-mediated immunity

    • C. 

      Humoral Immunity

    • D. 

      None of the above

  • 14. 
    Antibody functions as the effector of the humoral response by antigen binding and neutralizing it. The antigen can be eliminated by ........
    • A. 

      Facilitating the antibodies update by phagocytes

    • B. 

      Activating complements and inducing cell lysis

    • C. 

      Preventing the binding and host cell attachment

    • D. 

      All of the above

  • 15. 
    Which of the following is NOT a major feature (characteristic) of the adaptive immune system?
    • A. 

      Specificity

    • B. 

      Diversity

    • C. 

      Inflammatory response

    • D. 

      It has memory cells

  • 16. 
    Which of the following cells is involved in the second line of defense?
    • A. 

      Macrophage

    • B. 

      Cytotoxic-T

    • C. 

      Plasma

    • D. 

      Helper-T

  • 17. 
    Which of the following cells are involved in the second and third line defense?
    • A. 

      Helper-T / Activated –T

    • B. 

      Plasma / Basophils

    • C. 

      Natural killer / Macrophages

    • D. 

      Macrophages / T-killer

  • 18. 
    All of the following are among the characteristics of the primary immune response except ……. The infection could be widely spread The response takes about 48 hours to reach its maximum Appearance of the disease symptoms Immune cells respond to the antigens of the pathogen, attack it and destroy it.
    • A. 

      Option 1

    • B. 

      Option 2

    • C. 

      Option 3

    • D. 

      Option 4

  • 19. 
    The immune cell that is able to respond quickly after any subsequent encounter with the same antigen is the …….
    • A. 

      Memory cell

    • B. 

      Basophil

    • C. 

      Plasma cell

    • D. 

      Helper T-cell

  • 20. 
    The third Line of defense includes …….
    • A. 

      Skin and Mucous membranes.

    • B. 

      Inflammatory response.

    • C. 

      Immune Response.

    • D. 

      Cerumen and Tears

  • 21. 
    Innate defense system includes ………
    • A. 

      Immune response 

    • B. 

      Cell mediated immunity

    • C. 

      Humoral mediated immunity

    • D. 

      Inflammatory response.

  • 22. 
    The following diagram illustrates both Humoral and Cell mediated immunity. What are the numbers that correspond to the following respectively: B-lymphocyte, interleukin, macrophage, T-cytotoxic, natural killer cell and cytokine?
    • A. 

      1 – 2 – 3 – 6 – 5 – 8

    • B. 

      4 – 7 – 1 – 5 – 6 – 8

    • C. 

      4 – 8 – 1 – 6 – 5 – 7

    • D. 

      1 – 2 – 3 – 5 – 6 – 8

  • 23. 
    Helper-T cells cannot recognize the antigens unless it is bind to …..
    • A. 

      Immune globulin

    • B. 

      MHC

    • C. 

      CD8

    • D. 

      All the above

  • 24. 
    Complements do not function unless in the presence of …....
    • A. 

      Cytotoxic-T cells

    • B. 

      T- suppressor cells

    • C. 

      Helper-T cells

    • D. 

      B-cells

  • 25. 
    The figure below illustrates the primary and secondary immune responses. At which point do Ts-cells start their action: (A), (B) or (C)?
    • A. 

      (A)

    • B. 

      (B)

    • C. 

      (C)

    • D. 

      (A) and (C)

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