AQA Combined Science · Biology Paper 1 · B2
Organisation revision
Practice
Lessons
- 2.1Cells, tissues and organs
- 2.2The digestive system
- 2.3Enzymes and digestion
- 2.4Food tests
- 2.5Amylase practical
- 2.6The heart and circulation
- 2.7Blood vessels
- 2.8Blood and its components
- 2.9Lungs and gas exchange
- 2.10Coronary heart disease and treatment
- 2.11Health, risk factors and cancer
- 2.12Leaf tissues and stomata
- 2.13Plant transport: xylem and phloem
- 2.14Transpiration and the potometer