The coffee, the cigarette and alcohol are all examples of psychoactive drugs.
These drugs or substances act primarily upon the central nervous system where it alters our
brain function, changing temporarily our perception, mood,
consciousness and behavior. Even though they are licit, they have the same effect as illicit drugs like: heroin, cannabis, meth, ecstasy and cocaine.
<span>Three.
The wine contains alcohol, which is considered a depressant.
The cigarettes contain nicotine, which is considered a stimulant.
The coffee contains caffeine, which is also considered a stimulant.
Stimulants and depressants are two of the five categories of psychoactive drugs.</span>
Molecules through the membrane from higher to lower concentration.
Osmosis occurs in every one os us and is a very important way of transporting different substances in our body and has drastic implications for our normal, homeostatic functioning.
