O LevelBiologyCambridge (CIE)

Cambridge (CIE) O Level Biology Revision

Exam code: 5090

Get exam ready with our expert-written revision resources, which make complex Biology topics clear and memorable. From Characteristics of Living Organisms to Biotechnology and Genetic Engineering, our comprehensive content covers the entire CIE O Level Biology syllabus. Here, you’ll find everything you need in one place, including Biology revision notes and past papers — all tailored to the CIE specification. For some courses, we also offer flashcards, exam-style questions, mock exams and more to support your learning. Spend less time searching for reliable resources and more time studying what really matters. At Save My Exams, our experts help you to focus on exactly what you need to know so you can walk into your Cambridge (CIE) O Level Biology exam with confidence.

Included in this course

✅Exam specification aligned
💪Personalise to your ability
👩‍🏫Written by teachers and examiners
🎓Examiner tips and tricks
📋Exam practice with solutions
📓PDF downloads
✍️Step-by-step mark schemes

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Revision Notes

Concise, high-quality notes to help you quickly understand all the topics you might see in your exam

Exam Questions

Past paper and exam-style questions, organised by topic, with solutions, to boost your confidence

Past Papers

All the past papers from this course, all in one place. Download them to practice in real exam conditions

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Common Questions

Cambridge (CIE) O Level Biology covers 19 topics in total, including:

  1. Cells
  2. Classification
  3. Movement into & out of Cells
  4. Biological Molecules
  5. Enzymes
  6. Plant Nutrition
  7. Transport in Flowering Plants
  8. Human Nutrition
  9. Human Gas Exchange
  10. Respiration
  11. Transport in Humans
  12. Disease & Immunity
  13. Excretion in Humans
  14. Coordination & Control
  15. Coordination & Response in Plants
  16. Development of Organisms & Continuity of Life
  17. Inheritance
  18. Biotechnology & Genetic Modification
  19. Relationships of Organisms with one another & with the Environment

Our revision materials cover the entire Cambridge (CIE) O Level Biology syllabus, meaning every topic and key concept you need to know is covered — nothing more, nothing less. You can rest assured you’re only revising what matters for your exams.

The best way to approach Cambridge (CIE) O Level Biology revision is through a mix of active recall and exam practice. Active recall forces you to retrieve information from memory rather than passively reviewing it. This is a great way to make sure you’re retaining the information you’re revising.

Examples of active recall include testing yourself with flashcards, answering exam-style questions without checking your notes, creating mind maps on a topic from memory, and teaching somebody else complex concepts. Check out our Learning Hub for expert revision tips.

Start by reviewing our revision notes, then test your knowledge with our collection of past papers to make sure you’re acing your exam technique.

All of Save My Exams’ resources are carefully tailored to match the specifications of each exam board.

Our team of experienced teachers and subject experts work hard to ensure every resource is accurate, up to date and focused on helping you succeed in your specific course. This means no time wasted on irrelevant content — just the knowledge and practice you need.

Absolutely. Over 2 million students trust us each month to help them prepare for their GCSE, IGCSE, A Level, IB and AP exams and report improving by an average of two grades*.

Teachers and experts who know exactly what examiners are looking for create our resources. That’s why every revision note, practice question and model answer is designed to improve your exam technique, help you avoid common mistakes, and show you exactly what sets a full-mark answer apart from an average one.

*Based on a survey of 412 students conducted in 2024