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Conquer International A-Level Biology

Prepare for International A-Level Biology with practice on molecules, cells, genetics, ecology, and practical techniques.

Content reviewed February 2026 · Aligned to current specifications

About International A-Level Biology

International A-Level Biology provides an in-depth study of living organisms, from molecular biology and cell structure to ecology and evolution. Offered by Cambridge International and Edexcel International, the syllabus covers biological molecules, cells, genetics, biodiversity, physiology and ecosystems, developing both theoretical understanding and practical scientific skills.

The modular examination structure allows students to sit unit exams at multiple points during the year. This means you can complete AS-level units in your first year and A2 units in your second year, with the option to resit individual modules to improve your grade. Practical skills are assessed either through a practical examination or through written questions about experimental design and data analysis.

International A-Level Biology is recognised worldwide as preparation for university courses in biological sciences, medicine, veterinary science, dentistry, pharmacy and many other health and life science disciplines. The qualification develops scientific literacy, analytical reasoning and the ability to evaluate evidence critically.

Topics Covered

Cell Biology Biological Molecules Enzymes Genetics Transport in Plants & Animals Ecology Human Physiology Practical Skills

Exam Boards

International A-Level Biology is available from these exam boards

How UpGrades Helps

Exam-Style Questions

Practice with Biology questions that mirror the format and difficulty of real International A-Level exams.

Detailed Explanations

Understand not just the answer, but the reasoning and methodology behind every Biology solution.

Progress Tracking

See exactly how you're progressing across all 8 Biology topics with detailed analytics.

Study Tips for Biology

  • Draw and annotate biological diagrams regularly. International A-Level Biology requires detailed knowledge of structures from DNA replication to the nephron, and diagrams are an effective way to memorise and demonstrate this understanding.
  • Learn the precise definitions of key terms. Mark schemes at this level demand exact scientific vocabulary, and vague descriptions will not earn full marks.
  • Practice data analysis questions using unfamiliar datasets. The exam frequently presents data you have not seen before and asks you to apply your knowledge to interpret it.
  • Make links between topics. Understanding how genetics connects to evolution, how cell biology relates to physiology, and how ecology depends on biochemistry shows the depth of understanding that earns top grades.

Exam Tips for International A-Level Biology

  • In essay-style questions, plan your answer and include specific examples with named organisms, studies or processes. Depth of knowledge distinguishes A-grade answers from C-grade answers.
  • For questions on experimental design, always discuss variables (independent, dependent, controlled), sample size, reliability and how results would be analysed.
  • Read the command words carefully. Describe, explain, evaluate and suggest require different approaches and carry different expectations in International A-Level Biology mark schemes.

Frequently Asked Questions

Is International A-Level Biology accepted for medicine? +
Yes. Medical schools in the UK and worldwide accept International A-Level Biology as equivalent to the domestic A-Level. Most medical schools require Biology at A-Level, and the International qualification satisfies this requirement. You will also typically need to sit the UCAT or BMAT.
What is the difference between International A-Level and UK A-Level Biology? +
The content is broadly similar, but International A-Level Biology is modular (unit exams available multiple times per year with resit opportunities) while UK A-Level is linear (all exams at the end of two years). The practical assessment structure may also differ.
How much chemistry is in International A-Level Biology? +
A solid understanding of basic chemistry (bonding, pH, organic functional groups, energy changes) is essential for biological molecules, enzymes, respiration and photosynthesis. You do not need to take A-Level Chemistry, but it certainly helps.
Can I resit modules in International A-Level Biology? +
Yes. The modular structure allows you to resit individual unit examinations, with your best result counting towards the overall grade. This provides a safety net that the linear UK A-Level does not offer.

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