Biology Unit 1: Causes of Disease
- Created by: Christopher Melly
- Created on: 14-04-13 20:40
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- Causes of Disease
- Pathogens
- For a microorganism to be considered a pathogen it must:
- Gain entry to the host
- Colonise the tissues of the host
- Resist the defences of the host
- Cause damage to the host tissues
- How do microorganisms get into the body?
- Gas-exchange system
- Digestive system
- Broken interface such as skin
- Reproductive System
- How do pathogens cause disease?
- by damaging host tissue
- By producing toxins
- For a microorganism to be considered a pathogen it must:
- Data and Disease
- Correlation
- A correlation occurs when a change in one of two variables is reflected by a change in the other variable
- Correlation
- Lifestyle and Health
- Lifestyle choices and cancer
- Smoking
- Diet
- Obesity
- Physical activity
- Sunlight - Over exposed
- Risk factors and coronary heart disease
- Smoking
- High blood pressure
- Blood cholesterol levels
- Obesity
- Diet
- Physical activity
- Lifestyle choices and cancer
- Pathogens
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