1.1 Pathogens
- Created by: flyingmiguel
- Created on: 18-03-14 06:03
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- Pathogens
- Micro-organisms as pathogens
- To be considered a pathogen it must
- Resist the defences.
- Colonise the tissues.
- Cause damage to the tissues.
- Gain entry.
- To be considered a pathogen it must
- Entrance into the body
- Prevention.
- Enzymes that break down pathogens.
- Mucus layer covering exchange surfaces.
- Stomach acid that kills pathogens.
- How?
- Through the digestive system.
- Through the gas exchange system.
- Prevention.
- How do pathogens cause disease
- By producing toxins.
- By damaging host tissues.
- Micro-organisms as pathogens
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