Antibiotics & Painkillers (OCR GCSE Biology A, Combined (Gateway Science Suite)): Flashcards
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Antibiotics definition
Antibiotics definition
Medicines that 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 affect body tissue
Function of painkillers
Function of painkillers
Treat symptoms of disease, not the cause
3 ways to take antibiotics
3 ways to take antibiotics
Pill, syrup, or directly into bloodstream
Why different antibiotics are needed
Why different antibiotics are needed
Different antibiotics work against different types of bacteria
Impact of antibiotics on bacterial deaths
Impact of antibiotics on bacterial deaths
Decreased the number of deaths from bacterial diseases
Example of an antibiotic
Example of an antibiotic
Penicillin
Cause of antibiotic resistance
Cause of antibiotic resistance
Mutations during reproduction
Non-resistant bacteria + antibiotics
Non-resistant bacteria + antibiotics
They die
Resistant bacteria + antibiotics
Resistant bacteria + antibiotics
Survive & reproduce, increasing their population
How resistance affects effectiveness
How resistance affects effectiveness
Previously effective antibiotics no longer work
Method 1: preventing resistance
Method 1: preventing resistance
Stop overusing antibiotics
Method 2: preventing resistance
Method 2: preventing resistance
Finish courses of antibiotics to kill all bacteria