AQA Biology B1.1: Keeping Healthy

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1. Who discovered penicillin, perhaps the most famous antibiotic?

  • Rosalind Franklin
  • Sir Alexander Fleming, FRSE, FRS, FRCS
  • Charles Darwin, FRS
  • Rt. Hon. Ernest Rutherord, Baron of Nelson, OM, FRS
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2. Of which bodily system are white blood cells (leukocytes) a part?

  • The immune system
  • The endocrine system
  • The digestive system
  • The nervous (neurological) system

3. Which of the following is an accurate definition of 'metabolic rate'?

  • The rate at which bodily (primarily cellular and respiratory) reactions occur
  • The rate of protein synthesis in an organism's ribosomes
  • The rate of aerobic respiration in multicellular organisms
  • The rate at which a person can exercise

4. Which of the following is the name for the small poisonous substances emitted by pathogens?

  • Toxilla
  • Toxins
  • Toxans
  • Toxicons

5. Why did many medical professionals not initially accept Semmelweis's proposal?

  • The fatality rate in hospitals was relatively low anyway, and they didn't think it mattered
  • Pathogens had not been discovered, so he could not prove why this would make a difference
  • His suggestion appeared to counteract previous findings by other scientists
  • He was only a young doctor, who had made no former discoveries
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