Biology·Organisation & maintenance · NSSCO 3.13.2
Drugs
Narrated lesson · press play
What a drug really is — how antibiotics beat bacteria but not viruses, how alcohol and heroin harm the body and mind, and the wider damage drug misuse does to society.
What you'll learn in this lesson
By the end you should be able to (NSSCO Biology 3.13.2):
- Define a drug as a substance that modifies chemical reactions in the body
- Describe the use of antibiotics, and explain why they kill bacteria but not viruses
- Describe the effects of excessive alcohol and heroin (depressants, reaction times, liver, addiction)
- Describe the negative social implications of drug misuse
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