What you'll learn
Health, disease and feeding a growing population.
Disease and defence
- Communicable (pathogens) vs non-communicable disease.
- The body's defences and the role of white blood cells and antibodies.
- Vaccination and antibiotics (and resistance).
Global issues
- Food security, selective breeding and genetic engineering.
Exam tips
- Explain how vaccines create immunity (memory cells).
- Remember antibiotics do not work on viruses.
Common mistakes
- Treating all diseases as infectious.
- Saying antibiotics kill viruses.