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MCQs

Total Questions : 119 | Page 4 of 12 pages
Question 31. What is the result of invasion of a body by pathogens?
  1.    Infection
  2.    Inflammation
  3.    Swelling
  4.    Pus
 Discuss Question
Answer: Option A. -> Infection
Answer: (a).Infection
Question 32. What is the behavior in which T cells and B cells constantly travel throughout the body seeking out and destroying foreign substances?
  1.    Antibody-mediated immune response
  2.    Immune surveillance
  3.    Cell-mediated immune response
  4.    Vaccination
 Discuss Question
Answer: Option B. -> Immune surveillance
Answer: (b).Immune surveillance
Question 33. Which of the following produces the antibodies employed in the specific immune response of vertebrates?
  1.    B lymphocytes
  2.    T lymphocytes
  3.    Neutrophils
  4.    Macrophages
 Discuss Question
Answer: Option A. -> B lymphocytes
Answer: (a).B lymphocytes
Question 34. In a fetus, where are lymphocytes produced?
  1.    In the spleen
  2.    In the bone marrow
  3.    In the liver
  4.    In the heart
 Discuss Question
Answer: Option C. -> In the liver
Answer: (c).In the liver
Question 35. Which of the following is not part of the vertebrate immune system?
  1.    Lymphocytes
  2.    Antibodies
  3.    Cardiac glycosides
  4.    Lymph nodes
 Discuss Question
Answer: Option C. -> Cardiac glycosides
Answer: (c).Cardiac glycosides
Question 36. Lack of reaction to our own human leukocyte antigens (HLAs) is known as?
  1.    autoimmunity
  2.    complement system
  3.    clonal selection
  4.    tolerance
 Discuss Question
Answer: Option D. -> tolerance
Answer: (d).tolerance
Question 37. Which of the following components of the vertebrate immune response occurs first upon invasion by a virus or bacterium?
  1.    Activation of killer T lymphocytes
  2.    Activation of B lymphocytes
  3.    The inflammatory response
  4.    Mobilization of complement proteins
 Discuss Question
Answer: Option C. -> The inflammatory response
Answer: (c).The inflammatory response
Question 38. A cell which defends against body cells in which viruses are reproducing is
  1.    Exotoxin
  2.    Cytotoxic T cell
  3.    Endotoxin
  4.    Suppressor T cell
 Discuss Question
Answer: Option B. -> Cytotoxic T cell
Answer: (b).Cytotoxic T cell
Question 39. Which of the following is most likely to produce anaphylaxis in a susceptible individual?
  1.    Pollen
  2.    Mold
  3.    Dust
  4.    Bee sting
 Discuss Question
Answer: Option D. -> Bee sting
Answer: (d).Bee sting
Question 40. Which of the following white blood cells act as scavengers when they engulf and digest pathogens?
  1.    Macrophages
  2.    T cells
  3.    B cells
  4.    Lymphocytes
 Discuss Question
Answer: Option A. -> Macrophages
Answer: (a).Macrophages

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