AQA Y12 Defence Mechanisms Quiz. L1 (CH)

Which cells line the nasal passage & trachea and help prevent infection?

• Ciliated epithelial cells and goblet cells

• Cilia and mucus

• Ciliated cells and mucus cells

• Phagocytes and Mucus secreting cells

What is the main function of the skin in the immune system defence mechanisms?

• To produce antibodies

• To carry out phagocytosis

• To release inflammatory mediators

• To act as a physical barrier

Which of the following is an example of a non-specific response in the immune system?

• Antibody production

• Cell-mediated immunity

• Blood clotting

• Humoral response

What are antigens and where are they found?

• They are proteins found in the nucleus of cells

• They are proteins / glycoproteins found on the surface of cells

• They are DNA fragments present in non-self organisms

• They are glycoproteins which are found in the immune system

Which surfaces are antigens found on?

• -Pathogens,

  -cells in the immune system

  -toxic cells

• -Phagocytes

  -abnormal cells

  -cells from other organisms of different species

  -t cells

• -Pathogens

  -abnormal cells

  -cells from other organisms of the same species

  -toxins

• -Phagocytes

  -antibodies

  -cells

  -t cells

What is the main function of B lymphocytes in the immune system?

• To produce antibodies

• To carry out phagocytosis

• To release inflammatory mediators

• To activate T lymphocytes

Which statement is true about the specific immune response?

• It responds rapidly because it distinguishes between different pathogens

• It distinguishes between different pathogens but responds more slowly

• It does not distinguish between different pathogens but responds more slowly

• It responds slowly because it only involves phagocytes

Which cells in the immune system are involved in the non-specific immune response?

• All white blood cells

• B cells

• T cells

• Phagocytes

During phagocytosis the pathogen is taken in by the phagocyte, what do we call this process?

• Engulfed / Exocytosis

• Engulfed / Endocytosis

• Exocytosis

• Exocytosis / phagositised

During phagocytosis, what destroys the pathogen?

• Enzymes called pathogenase

• Digestive enzymes called amylase

• Hydrochloric acid

• Digestive enzymes called lysozymes