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MCQs

Total Questions : 119 | Page 2 of 12 pages
Question 11. Which of the following immune cells would have an especially low count in a patient with advanced AIDS?
  1.    Killer T lymphocytes
  2.    Helper T lymphocyte
  3.    B lymphocytes
  4.    None of these
 Discuss Question
Answer: Option B. -> Helper T lymphocyte
Answer: (b).Helper T lymphocyte
Question 12. Very low doses of antigen may induce
  1.    hypersensitivity
  2.    immunological ignorance
  3.    low zone tolerance
  4.    low zone immunity
 Discuss Question
Answer: Option C. -> low zone tolerance
Answer: (c).low zone tolerance
Question 13. If a person is vaccinated against a disease sometime in the past, which of the following is currently in your body?
  1.    The disease organism itself and antigens for the disease organism
  2.    A very high level of antibodies against the disease antigens
  3.    Memory B lymphocytes for the antigen of this disease organism
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Answer: (d).All of the above
Question 14. Plasma cells produce thousands of __________ that are released into the bloodstream
  1.    antigens
  2.    antibodies
  3.    helper T cells
  4.    virus fragments
 Discuss Question
Answer: Option B. -> antibodies
Answer: (b).antibodies
Question 15. In cellular immunity, T lymphocytes are responsible for the recognition and killing of foreign invaders. The cells are
  1.    cytotoxic T lymphocytes (CTL)
  2.    killer T cells
  3.    both (a) and (b)
  4.    none of the above
 Discuss Question
Answer: Option C. -> both (a) and (b)
Answer: (c).both (a) and (b)
Question 16. Immunological memory is due to
  1.    short lived macrophage that can recognize specific pathogens
  2.    long lived B cells that secrete a specific antibody
  3.    long lived B cells that secrete a specific antigen
  4.    short lived helper T cells that signal macrophage to divide
 Discuss Question
Answer: Option B. -> long lived B cells that secrete a specific antibody
Answer: (b).long lived B cells that secrete a specific antibody
Question 17. What are the solutions prepared from weakened or dead microorganisms, viruses, or toxins that provide some immunity from diseases?
  1.    Vaccines
  2.    Histamines
  3.    Drugs
  4.    Antibiotics
 Discuss Question
Answer: Option A. -> Vaccines
Answer: (a).Vaccines
Question 18. What is the result of an abnormal response of the immune system to part of a person's own body?
  1.    Passive immunity
  2.    Cancer
  3.    An allergic response
  4.    An autoimmune disease
 Discuss Question
Answer: Option D. -> An autoimmune disease
Answer: (d).An autoimmune disease
Question 19. During exposure to a foreign invader, there are more __________ present in the vertebrate body than before exposure
  1.    antibodies
  2.    lymphocytes
  3.    macrophages and antigens
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Answer: (d).all of these
Question 20. To elicit the best antibodies to mouse MHC I, it should be injected into a
  1.    goat
  2.    mouse of the same genetic background (strain)
  3.    mouse of a different strain
  4.    rat
 Discuss Question
Answer: Option A. -> goat
Answer: (a).goat

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