What this practice covers
These questions are drawn from past CIE 0654 Co-ordinated Sciences papers. 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 Paper 1 and Paper 2 MCQs →
What examiners see students get wrong here
These are the errors that cost marks on diseases and immunity, taken from our own topic notes. Read them before you practise and you will recognise the traps in the questions.
- Saying a pathogen is a disease. It is the organism that causes one.
- Calling every disease transmissible.
- Saying cilia make mucus, or that goblet cells move it.
- Saying phagocytes make antibodies, or that lymphocytes engulf pathogens.
- Saying a vaccine contains antibodies. It contains antigens, and the body makes the antibodies itself.
- Saying a vaccine gives you a mild dose of the disease.
- Saying antibodies kill pathogens directly, without mentioning clumping, marking or neutralising toxins.
- Calling the immunity from breast milk active. It is passive, because the antibodies were made by the mother.
Revise it first
If any of the above is unfamiliar, work through the notes before practising: Diseases and immunity revision notes.