Biology - Fighting diseas
- Created by: Zoe
- Created on: 26-05-14 11:33
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- Biology - Fighting Disease
- Bacteria
- Very small cells
- Damage your cells
- Produce toxins
- Mutate to be antibiotic resistant
- Drugs
- Painkillers ONLY relieve symptoms
- Antibiotics kill Bacteria
- Grown in culture medium - agar jelly
- Eg MRSA
- Doctors prescribe LESS antibiotics
- Drugs
- Viruses
- Not cells
- Invade cells and make copies of themselves
- Cause cell to burst
- Skin, hairs & mucus stop entering the body
- Platelets seal wounds
- Immune system: white blood cells
- Engulf and digest foreign cells
- Produce antibodies
- Proteins
- Specific to antigen
- Kill bacteria & viruses
- Produce antitoxins
- Vaccination
- Inject dead or damaged pathogens
- Pros
- Control infectious diseases Eg. Smallpox
- Prevent epidemics - herd immunity
- Cons
- Don't always give immunity
- Bad reaction
- Drugs
- Painkillers ONLY relieve symptoms
- Antibiotics kill Bacteria
- Grown in culture medium - agar jelly
- Ignaz Semmelweis
- Vienna - Childbirth - hand washing
- Bacteria
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