AQA · Biology · 8461
GCSE Biology: Antibiotics and painkillers
Infection and response · AQA GCSE Biology (8461), specification point 4.3.1.8. Cards are generated from the exam board's own specification for "Antibiotics and painkillers", and every card links back to the page it came from. Specification © AQA — used with attribution.
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How do antibiotics cure bacterial disease?
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By killing the infective bacteria inside the body.
? is an example of an antibiotic.
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Penicillin
Why should specific bacteria be treated with specific antibiotics?
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Different antibiotics kill different bacteria, so the antibiotic must match the bacterium causing the infection to be effective.
What effect has the use of antibiotics had on deaths from infectious bacterial diseases?
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It has greatly reduced them.
What is the major concern arising from widespread antibiotic use?
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The emergence of bacterial strains that are resistant to antibiotics.
Can antibiotics kill viral pathogens?
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No — antibiotics only kill bacteria; they have no effect on viruses.
What do painkillers do when used to treat disease?
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They treat the symptoms of the disease but do not kill the pathogen.
Why is it difficult to develop drugs that kill viruses?
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Viruses reproduce inside the body's cells, so a drug that kills them tends to damage the body's tissues too.
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