What this practice covers
These questions are drawn from past CIE 0654 Co-ordinated Sciences papers and filtered to drugs. You answer, you find out immediately whether you were right, and you get the reasoning for the correct option and for each distractor. Wrong answers go to a mistakes locker so you can come back to exactly those.
Practice is free. You need an account only so your progress and your mistakes are still there next time.
Start practising practice questions →
What examiners see students get wrong here
These are the errors that cost marks on drugs, taken from our own topic notes. Read them before you practise and you will recognise the traps in the questions.
- Defining a drug as an illegal or harmful substance.
- Saying nicotine causes lung cancer, or that tar is the addictive component.
- Saying carbon monoxide is addictive, or that it causes cancer.
- Saying carbon monoxide damages the lungs. It acts on haemoglobin in the blood.
- Saying smoke stops oxygen diffusing, when the question asks for the direct result of paralysed cilia.
- Describing alcohol as a stimulant. It is a depressant.
- Saying alcohol damages the kidneys rather than the liver.
- Saying antibiotics kill viruses.
Revise it first
If any of the above is unfamiliar, work through the notes before practising: Drugs revision notes.