Communicable Diseases (AQA GCSE Biology): Flashcards
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Practise the cards
13 cards from this deck
What do painkillers treat?
What do painkillers treat?
Symptoms of disease
Do painkillers kill pathogens?
Do painkillers kill pathogens?
No, they don't kill them
What do antibiotics do?
What do antibiotics do?
Kill bacteria inside the body
What type of infections do antibiotics work on?
What type of infections do antibiotics work on?
Bacterial infections only
Example of early antibiotic
Example of early antibiotic
Penicillin
How some antibiotics kill bacteria
How some antibiotics kill bacteria
Stop them building cell walls properly
Why antibiotics don't harm human cells
Why antibiotics don't harm human cells
Human cells don't have cell walls
What is antibiotic resistance?
What is antibiotic resistance?
When bacteria survive antibiotics that should kill them
What is MRSA?
What is MRSA?
Bacteria resistant to several antibiotics
Process by which antibiotic resistance develops
Process by which antibiotic resistance develops
Natural selection
Why antibiotics don't work on viruses
Why antibiotics don't work on viruses
Viruses live inside body cells, making them hard to target
Why antiviral drugs are hard to develop
Why antiviral drugs are hard to develop
They often damage human cells too
What fights off viral infections?
What fights off viral infections?
Immune system