Drugs Flashcards
1
Q
Antibiotics are…
A
chemical substances
made by certain fungi or bacteria
that disrupt the structure or function of bacteria
2
Q
antibiotics dont affect viruses because..
A
viruses have no cell wall, cell membrane or cell organelles
3
Q
How has antibiotic resistance happened?
A
- overuse
- failing to complete the fully prescribed course
- large scale use of antibiotics in farming
4
Q
Why is alcohol bad?
A
short term:
- slow reaction time
- impaired muscle control
long term:
- damages the brain (memory loss)
- damages the liver
5
Q
why is heroin bad?
A
- highly addictive
- very expensive
- people share needles, increases risk of HIV
6
Q
how does heroin affect the nervous system?
A
-heroin enters the brain as morphine
-morphine fits into some of the endorphin receptors
(makes you feel good)
-reduces the production of natural endorphins
7
Q
Tar is…
A
a carcinogen
8
Q
carbon monoxide…
A
reduces capacity of blood to carry oxygen
9
Q
nicotine…
A
narrows blood vessels
