B1 keeping healthy and pathogens
- Created by: flo.w
- Created on: 28-03-14 17:25
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- Keeping healthy
- Microorganisms that cause diseases are known as pathogens
- Bacteria are single celled organisms, mostly harmless
- Viruses are smaller than bacteria and cause disease
- Defence mechanisms
- Droplet infection
- tiny droplets full of pathogens enter your breathing system
- contaminated food/drink
- raw or undercooked food let pathogens get straight to your gut
- breaks in the skin
- pathogens enter in breaks in the skin, platelets form clots at the site to prevent infection
- Droplet infection
- Changing pathogens
- bacteria are increasingly becoming immune to antibiotics
- mutations in the bacteria
- bacteria are increasingly becoming immune to antibiotics
- Microorganisms that cause diseases are known as pathogens
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