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O LevelBiologyCambridge (CIE)Exam Questions12. Disease & Immunity12.1 Disease

Disease (Cambridge (CIE) O Level Biology): Exam Questions

Exam code: 5090

1 hour19 questions

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12.1 Disease

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1
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What is a pathogen?

  • A transmissible disease

  • A phagocyte that engulfs bacteria

  • A disease-causing organism

  • A bacterial cell

Choose your answer

2
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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

Choose your answer

3
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Which of the options below is an example of a transmissible disease?

  • Obesity

  • Tooth decay

  • Cholera

  • Rickets

Choose your answer

41 mark

Which action can prevent the spread of the human immunodeficiency virus (HIV)?

  • keeping healthy by taking regular exercise 

  • avoiding contact with saliva

  • breast-feeding babies

  • using condoms during sexual intercourse

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1
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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

Choose your answer

2
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Which of the diseases listed below are not caused by pathogens?

  1. Coronary Heart Disease

  2. Cholera

  3. AIDS

  4. Scurvy

  • 2 only

  • 1 and 4

  • 2 and 3

  • 2, 3 and 4

Choose your answer

3
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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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4
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Which of the following can occur with a cholera infection?

  1. Loss of salts from the blood

  2. Loss of water from the blood

  3. Blockage of the small intestine

  4. Persistent diarrhoea

  • 1 and 4

  • 1, 2 and 4

  • 3 and 4

  • All 4

Choose your answer

51 mark

What are the effects of drinking a large quantity of alcohol on the human body? 

 

effects on the body

acts as a

reaction time

damages the

A

depressant

decreases

kidney

B

depressant

increases

liver

C

stimulant

increases

kidney

D

stimulant

decreases

liver

    Choose your answer

    61 mark

    What are the roles of the female mosquito and the malarial pathogen in the spread of malaria?

     

    female mosquito

    malarial pathogen

    A

    parasite

    vector

    B

    parasite

    parasite

    C

    vector

    parasite

    D

    vector

    vector

      Choose your answer

      71 mark

      Which words all describe the organism that causes malaria? 

      • microscopic, parasite, sexually transmitted

      • microscopic, parasite, pathogen 

      • mosquito, pathogen, vector

      • parasite, sexually transmitted, vector

      Choose your answer