Other questions in this quiz

2. It is important to use antibiotics carefully because:

  • antibiotics could kill harmless viruses as well as harmful ones
  • over-use can lead to the development of resistant bacteria
  • antibiotics are very expensive

3. What is a 'pathogen'?

  • A type of disease
  • A disease-causing microorganism
  • A disease

4. What is a feature of low-density lipoproteins (LDLs)?

  • LDLs carry excess cholesterol back to the liver
  • LDLs carry cholesterol from the liver to the cells of the body
  • LDLs are 'good' cholesterol

5. Which of these is one of the main problems with viruses?

  • hey cause cholera and typhoid in refugee camps
  • They damage the host cell when they reproduce
  • They are killed by antibiotics

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