15.2) Medicinal drugs Antibiotics: Antibiotics attack bacteria in a variety of ways Disrupt the production of the cell wall and so prevent the bacteria from reproducing, or even cause them to burst open. Interfere with protein synthesis and thus arrest...
15.1) Drugs Drug: is any substance taken into the body that modifies or affects chemical reactions in the body.
15.3) Misused drugs Effects of excessive alcohol consumption and abuse of heroin: Powerful depressant drugs Effect on reaction times and self-control Addiction and withdrawal symptoms Negative social implications, eg. crime How heroin affects the nervous...