B2.5 How can we treat disease? Flashcards
What type of pathogens do antibiotics treat?
Bacteria (NOT VIRUS)
What are antibiotics?
Medicine that treats infections caused by bacteria
kills the bacteria or stops its growth
don’t harm our cells
What is Antibiotic resistance?
When a bacteria that used to be killed by a drug isn’t affected by it any more
How is the structure of virus different to structure of bacteria?
Virus live and replicate INSIDE of our cells
Bacteria live and replicate OUTSIDE our cells
Virus inserts its genetic material inside the human cell’s dna to reproduce
Why can antibiotics treat bacteria but not viruses?
Virus have different mechanisms and machinery to survive and replicate than bacteria
The antibiotic has no target to attack in a virus
Why discovered Antibiotics?
Alexander Fleming
What do antibiotics do?
Antibiotics kill bacteria or inhibit their cell processes.
They do this by stopping bacteria from growing or reproducing.
Why would antibiotics not work for the flu or HIV
Only treats bacterial infections
Flu and HIV are caused by viruses
Why do we need different antibiotics?
why can’t one antibiotic treat all bacterial infections?
Different bacteria have different structures so need different antibiotics
Why should someone with a serious wound be given antibiotics?
Prevent the wound from becoming infectious by killing the bacteria
what is a disadvantage of antibiotics?
bacteria can become resistant to the antibiotic so new medicine has to be made
How can we stop antibiotic resistant bacteria from spreading?
use antibiotics only for bacterial and fungal infections (don’t work on viral infections, HIV, flu)
Take the full course of antibiotics prescribed by the doctor
What is Coronary Heart Disease? How can we treat Coronary heart disease? (4)
What fat builds up in arteries. This starves the heart of oxygen causing muscles to die and heart attack.
- Change lifestyle (eat healthy, exercise)
- Take medicine to reduce blood pressure
- surgery to bypass the blockage
- heart transplant
