O Level
Cambridge O Level Biology Hub — Complete Revision Notes & Topical Questions
A clear, structured course to help you understand key concepts, build exam…
0Units
0Lessons
0Quizzes
0Cost
✅ 100% free📱 Phone & laptop🧠 Short, clear lessons🎯 Instant feedback🧪 Virtual lab📈 Progress you can see👪 Easy for parents to follow📝 Exam-style practice✅ 100% free📱 Phone & laptop🧠 Short, clear lessons🎯 Instant feedback🧪 Virtual lab📈 Progress you can see👪 Easy for parents to follow📝 Exam-style practice
2Classification
1 lesson
- 2.12. Classification12 minStudy
3Movement into and out of Cells
1 lesson
4Biological Molecules
1 lesson
- 4.14. Biological Molecules12 minStudy
5Enzymes
1 lesson
- 5.15. Enzymes12 minStudy
6Plant Nutrition
1 lesson
- 6.16. Plant Nutrition12 minStudy
7Transport in Flowering Plants
1 lesson
8Human Nutrition
1 lesson
- 8.18. Human Nutrition12 minStudy
9Human Gas Exchange
1 lesson
- 9.19. Human Gas Exchange12 minStudy
10Respiration
1 lesson
- 10.110. Respiration12 minStudy
11Transport in Humans
1 lesson
- 11.111. Transport in Humans12 minStudy
12Disease and Immunity
1 lesson
- 12.112. Disease and Immunity12 minStudy
13Excretion in Humans
1 lesson
- 13.113. Excretion in Humans12 minStudy
14Coordination and Control
1 lesson
- 14.114. Coordination and Control12 minStudy
15Coordination and Response in Plants
1 lesson
16Development of Organisms and Continuity of Life
1 lesson
17Inheritance
1 lesson
- 17.117. Inheritance12 minStudy
18Biotechnology and Genetic Modification
1 lesson
19Relationships of Organisms with one another and with the Environment
1 lesson
Welcome to
Cambridge O Level Biology
Here is how to get the most from this course.
How this course teaches
Every unit follows the Cambridge O Level Biology specification in order.
- Key ideas
- Core content
- Processes
- Summary
- Self-check
1Learn
Concise notes with diagrams and the exact keywords examiners look for.
2Check
Short questions at the end of every lesson.
3Practise
Marked topic quizzes and past-paper style questions for each unit.
4Master
Summaries and comparison tables that pull each unit together.