Antibiotics & Painkillers (AQA GCSE Biology Combined Science): Flashcards
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What do antibiotics do?
What do antibiotics do?
Kill bacterial pathogens without damaging body cells
Why can't antibiotics kill viruses?
Why can't antibiotics kill viruses?
Viruses use body cells to reproduce; drugs would harm body tissue
What do painkillers do?
What do painkillers do?
Treat symptoms of disease, not the cause
Example of an antibiotic
Example of an antibiotic
Penicillin
Main concern about antibiotics
Main concern about antibiotics
Bacteria becoming resistant to antibiotics
How do bacteria become resistant to antibiotics?
How do bacteria become resistant to antibiotics?
Mutations during reproduction result in bacteria no longer killed by antibiotics
Effect of antibiotics on non-resistant bacteria
Effect of antibiotics on non-resistant bacteria
They die
Effect of antibiotics on resistant bacteria
Effect of antibiotics on resistant bacteria
Survive and reproduce, increasing resistant population
Prevention method: antibiotic use
Prevention method: antibiotic use
Stop overusing antibiotics
Prevention method: completing treatment
Prevention method: completing treatment
Finish courses of antibiotics to kill all bacteria