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Body defences, vaccination and antibiotics

Infection and bioenergetics · Lesson 2 of 6

Lesson 2 of 6

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Lesson 2 of 6 · Infection and bioenergetics

Body defences, vaccination and antibiotics

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By the end you’ll be able to

describe non-specific human defence systems including the skin, blood clotting, mucus, cilia and stomach acid
explain the roles of white blood cells in phagocytosis, antibody production and antitoxin production
explain how vaccination protects individuals and populations, including the idea of immunity and reduced spread of disease

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describe how antibiotics act against bacteria, why they do not kill viruses, and why painkillers do not treat the cause of bacterial or viral disease

explain how antibiotic-resistant strains arise by natural selection and describe how the overuse or inappropriate use of antibiotics increases resistance

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