Why would spraying a rose plant with an antibiotic fail to cure rose black spot?
Antibiotics kill bacteria, but rose black spot is caused by a fungus
Antibiotics kill fungi, but rose black spot is caused by a protist
Antibiotics kill protists, but rose black spot is caused by a virus
Antibiotics kill viruses, but rose black spot is caused by a bacterium
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.