IGCSEBiology: Co-ordinated Sciences (Double Award)CIETopic Questions10. Diseases & ImmunityDiseases & Immunity

Diseases & Immunity (CIE IGCSE Biology: Co-ordinated Sciences (Double Award))

Topic Questions

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The immune system recognises which part of a pathogen?

  • Antibiotic

  • Antigen

  • Active site

  • Antibody

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What is a pathogen?

  • A transmissible disease

  • A phagocyte that engulfs bacteria

  • A disease-causing organism

  • A bacterial cell

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In many multicellular animals, pathogens are recognised as foreign and are attacked by the immune system.

Which of the following may be produced during an immune response?

  • Antigens

  • Antibiotics

  • Pathogens

  • Antibodies

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Which body defence listed below acts as a chemical barrier?

  • Mucus lining the airways

  • Antibody production

  • Hairs in the nose

  • Phagocytosis

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Which of the options below is an example of a transmissible disease?

  • Obesity

  • Tooth decay

  • Cholera

  • Rickets

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The human body has a number of barriers to prevent infection by pathogens some of which are listed below.

  1. Skin
  2. Mucus
  3. Hairs in the nose
  4. Antibodies
  5. Stomach acid

Which of these are examples of mechanical barriers?

  • 1 and 3

  • 1, 2 and 4

  • 2 and 4

  • 1, 3 and 5

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Which of the following diseases listed below are not caused by infectious pathogens?

  1. Coronary Heart Disease
  2. Cholera
  3. AIDS
  4. Scurvy

  • 2 only

  • 1 and 4

  • 2 and 3

  • 2, 3 and 4

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Which of the following diseases can be transmitted by contact with contaminated surfaces?

  • Athletes foot and malaria

  • Salmonella and typhoid

  • Influenza and dengue fever

  • Salmonella and athletes foot

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When a tissue is transplanted from a female donor to a male recipient, it may be rejected.

What is the main cause of this rejection?

  • The presence of an X chromosome

  • The action of platelets

  • The action of antibiotics

  • Antibody production

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