Test your understanding of key chapter concepts by working through this quiz. You can check your answer by clicking on the arrow to the right or on what you think the correct answer is.  The correct answer will then be revealed for that question.

1. A systematic defence against antigens initiated by lymphocytes is called

  1. a cross-reaction
  2. inflammation
  3. septicaemia
  4. an immune response


d. an immune response

2. The complement system is responsible for

  1. production of pain
  2. increased extracellular fluid volume
  3. destruction of microorganisms
  4. blood clotting


c. destruction of microorganisms

3. Antibodies are produced by

  1. macrophages
  2. helper T-lymphocytes
  3. memory B-lymphocytes
  4. plasma cells


d. plasma cells

4. Which cells of the innate immune system stimulate specific response from the adaptive immune response?

  1. macrophages
  2. cytotoxic T-lymphocytes
  3. helper T-lymphocytes
  4. memory T-lymphocytes


a. macrophages

5. Which T-lymphocytes activate B-cell response?

  1. helper T-cells
  2. cytotoxic T-cells
  3. memory T-cells
  4. suppressor T-cells


a. helper T-cells

6. T-lymphocytes mature in ………… ; and B-lymphocytes mature in …………

  1. yellow bone marrow; red bone marrow
  2. thyroid follicles; bone marrow
  3. bone marrow; thymus gland
  4. thymus gland; bone marrow


d. thymus gland; bone marrow

7. The chemical signals secreted by helper T-lymphocytes to activate other immune cells are

  1. cytokines
  2. antibodies
  3. immunoglobulins
  4. histamines


a. cytokines

8. The level of this antibody is raised in allergic reactions

  1. IgM
  2. IgG
  3. IgA
  4. IgE


d. IgE

9. Human illnesses resulting in the body attacking its own tissues are called

  1. antibody diseases
  2. autoimmune diseases
  3. allergic reactions
  4. infectious diseases


b. autoimmune diseases

10. Substances that are injected containing an antigen to stimulate the immune system to respond are called

  1. vaccines
  2. medications
  3. immunoglobulins
  4. mast cells


a. vaccines