Antibiotics & Painkillers (OCR GCSE Biology A (Gateway Science Suite)): Flashcards
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Practise the cards
12 cards from this deck
What are antibiotics?
What are antibiotics?
Medicines that kill bacterial pathogens without harming body cells
Why can't antibiotics kill viruses?
Why can't antibiotics kill viruses?
Viruses use body cells to reproduce; drugs would harm tissue
What do painkillers treat?
What do painkillers treat?
Symptoms of disease, not the cause
Example of a painkiller
Example of a painkiller
Aspirin
How can antibiotics be taken?
How can antibiotics be taken?
Pill, syrup, or directly into bloodstream
Impact of antibiotics on deaths from bacterial diseases
Impact of antibiotics on deaths from bacterial diseases
Decreased the number of deaths
Example of an antibiotic
Example of an antibiotic
Penicillin
How does antibiotic resistance develop?
How does antibiotic resistance develop?
Mutations during reproduction make bacteria resistant
What happens to non-resistant bacteria when exposed to antibiotics?
What happens to non-resistant bacteria when exposed to antibiotics?
They die
What happens to resistant bacteria when antibiotics are used?
What happens to resistant bacteria when antibiotics are used?
Survive & reproduce, increasing resistant population
How to prevent antibiotic resistance: Method 1
How to prevent antibiotic resistance: Method 1
Stop overusing antibiotics; avoids unnecessary exposure
How to prevent antibiotic resistance: Method 2
How to prevent antibiotic resistance: Method 2
Finish antibiotic courses to kill all bacteria