The Table shows information about some communicable diseases.
Table
| Disease | Type of pathogen | Effect on the body |
|---|---|---|
| cholera | bacterium | P |
| tuberculosis | Q | lung damage |
| malaria | protist | R |
| HIV | virus | destroys white blood cells |
Give the missing information P, Q and R.
State what is meant by a pathogen.
Chalara ash dieback is a disease of ash trees caused by a fungus.
Describe two effects of Chalara ash dieback on an ash tree.
43 exam-style questions on Edexcel GCSE Biology 5.1 Health and communicable disease, covering 5.1.1 Communicable and non-communicable diseases, 5.1.2 Disease susceptibility interactions, 5.1.3 Pathogens as disease-causing organisms, 5.1.4 Common infections, 5.1.5 Spread and prevention of pathogens, 5.1.6 Lifecycle of a virus, and 5.1.7 Spread and prevention of STIs. Each one has a worked solution and a mark scheme showing where the marks go.