A child has a rare disorder. Their white blood cells carry out phagocytosis normally, but they cannot produce antibodies.
Explain why the child is still able to destroy some pathogens.
The child gets the same infections again and again. Explain why.
The child is given regular injections of antibodies taken from donated blood. Suggest one limitation of this treatment.
176 exam-style questions on AQA GCSE Biology 3.1 Communicable diseases, covering 3.1.1 Communicable (infectious) diseases, 3.1.2 Viral diseases, 3.1.3 Bacterial diseases, 3.1.4 Fungal diseases, 3.1.5 Protist diseases, 3.1.6 Human defence systems, 3.1.7 Vaccination, 3.1.8 Antibiotics and painkillers, and 3.1.9 Discovery and development of drugs. Each one has a worked solution and a mark scheme showing where the marks go.