Work through a topic in order, attempt the practice questions before opening the answers, then test yourself on past papers. Always check the topic list against the syllabus your school follows.
7 lessons
Topics
Cell biology
Lesson 1
Cell structure and organisation
Learn the parts of plant and animal cells, how specialised cells are adapted, the levels of organisation, and how to calculate magnification, with practice questions.
Start lesson → Lesson 2
Diffusion, osmosis and active transport
Understand how substances move into and out of cells by diffusion, osmosis and active transport, with the potato experiment, worked examples and practice questions.
Start lesson → Lesson 3
Enzymes
Learn what enzymes are, how they work, how temperature and pH affect them, and how to interpret enzyme experiments, with worked examples and practice questions.
Start lesson →Plant nutrition
Energy release
Human nutrition
Transport in humans
How to use these lessons
Learn, practise, then test yourself
- Read the ideaStart with the key points and formulas so you know what the topic is about.
- Follow the examplesWork through each example on paper, one line at a time, before moving on.
- Try before you peekAttempt every practice question first. Open the answers only to check.
- Practise on real papersWhen the topic feels comfortable, move to past papers and the quiz bank.