IB

Biology IB HL Revision

Get ready for your IB Biology HL exam with exam papers, your handwritten answers marked while you wait, and exam questions by topic that build your personal revision list. No payment required to get started.

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Also available as Biology IB SL

Exam Questions

Questions on any Biology IB HL topic. Mark yourself against the answer, and every question you miss builds your personal revision list.

Exam Papers

Every IB Biology HL exam paper is generated fresh, with a full mark scheme, weighted toward the topics most likely to come up.

Marking while you wait

Photograph your handwritten answers. They’re read and marked against the mark scheme, and you see where every mark went.

Topics covered

Questions and exam papers cover every IB Biology HL topic in the IB subject guide.

Water Nucleic acids Origins of cells Cell structure Viruses Diversity of organisms
Show all 40 topics
Classification and cladistics Evolution and speciation Conservation of biodiversity Carbohydrates and lipids Proteins Membranes and membrane transport Organelles and compartmentalization Cell specialization Gas exchange Transport Muscle and motility Adaptation to environment Ecological niches Enzymes and metabolism Cell respiration Photosynthesis Chemical signalling Neural signalling Integration of body systems Defence against disease Populations and communities Transfers of energy and matter DNA replication Protein synthesis Mutation and gene editing Cell and nuclear division Gene expression Water potential Reproduction Inheritance Homeostasis Natural selection Stability and change Climate change

Revision guides

IB Biology Revision Guide — HL Extension Content and Markband Technique

How to revise IB Biology at HL and SL, including the HL-only extension content and how to write answers that reach the top markbands.

Start revising Biology IB HL today

Free sample questions included. No payment required to get started.

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Frequently asked questions

Is ExamPass.ai free for Biology IB HL?
Yes. Every new account includes a free set of sample questions, no payment required — and revision notes, flashcards, your study planner and strengths & weaknesses are free too. Extra exam questions and exam papers run on credit packs or a monthly plan.
Does ExamPass.ai support IB Biology HL?
Yes. Exam papers and exam questions are built specifically for the IB Biology HL subject guide, and marked to IB mark scheme conventions.
Can ExamPass.ai mark my handwritten Biology IB HL answers?
Yes. Photograph your handwritten answer with your phone. It’s read and marked against the stored mark scheme, and you get detailed feedback while you wait.
Will I see the same questions twice?
No. We track every question you’ve seen, and new practice sessions are built to cover ground you haven’t been tested on yet. Each session builds on the last one.