Using Drugs to Treat Disease GCSE AQA Biology
- Created by: Caitlinyx
- Created on: 22-04-13 19:41
View mindmap
- Using Drugs to Treat Disease
- Painkillers
- Such as asprin and paracetamol
- Have no affect on the pathogen making you feel ill
- They relieve the symptoms and you have to wait for your immune system to fight it
- Antibiotics
- This had led to the prevention of many deaths
- Have no effect on viruses
- The problem with viruses is that they reproduce inside the human cells and it is very hard to develop a drug that only kills the virus cells and not the human
- Discovering Penicillin
- Alexander Flemming was a scientist who studied bacteria and wanted to find ways of killing it
- In 1928, he was growing lots of bacteria on agar plates. He left one open, and when he came back from holiday he saw mould growing on some of them
- He called the mould penicillin and tried to extract the juice, but he couldn't get much and he couldn't make it survive, so in 1934 he gave up
- After 10 years, Ernst Chain and Howard Florey tried to use it on people. They tried it on a dying man, who recoved, but then they ran out of penicillin, so the man died
- They kept working on it and managed to make it on an industrial scale
- After 10 years, Ernst Chain and Howard Florey tried to use it on people. They tried it on a dying man, who recoved, but then they ran out of penicillin, so the man died
- He called the mould penicillin and tried to extract the juice, but he couldn't get much and he couldn't make it survive, so in 1934 he gave up
- Painkillers
Comments
No comments have yet been made