IGCSE Biology Past Papers by Topic: A Practical Guide

The exam boards publish past papers as whole papers, not sorted by topic. So the best way to practise biology past papers by topic is a two-step routine: first do exam-style questions on one topic until you are confident, then find the questions on that topic in the official papers and mark them with the official mark scheme. This guide shows where the official papers, mark schemes and examiner reports are for each board, and a simple method for using them one topic at a time.

One thing to be clear about first. The questions on Clock it with SCI are our own original exam-style questions, written to each specification and marked the way examiners mark. They are not past-paper questions, and we do not host or copy any board's papers: they are the boards' copyright. For real past papers, always go to the official sources below.

Where to find official biology past papers for each board

Every board below publishes question papers with their mark schemes (the IB says markschemes), and most also publish examiner reports, which explain where students lost marks on each question. Our past papers page for each course links straight to the right official page and shows how the papers are set out.

AQA GCSE

AQA's assessment resources page for each specification lists question papers, mark schemes and examiner reports, which you can filter by exam series and tier. You can also search every subject at once on AQA's past papers and mark schemes search. Combined Science students should filter to the two biology papers. If the most recent series is not there, ask your teacher: schools often keep the newest papers for mocks.

Pearson Edexcel GCSE and International GCSE

On each qualification's page, open the course materials and choose the exam materials category. Pearson also has a single past papers search by qualification, subject and series. Pearson says only teachers can open the most recent papers, those sat within the past 12 months, and papers shown with a padlock are for teachers and exams officers only. Look for the paper codes: 4BI1/1B and 4BI1/2B for International GCSE Biology, and 4SD0/1B for the Double Award biology paper.

Cambridge IGCSE 0610 and 0653

Cambridge's past papers page for each syllabus has question papers, mark schemes, examiner reports and specimen papers. It shows only a selection, and registered schools can get more through the Cambridge School Support Hub, so ask your teacher if a series is missing. Cambridge also notes that older papers may not match the current syllabus, so check a question against the 0610 specification checklist before you spend time on it. Papers come in variants (for example 41, 42 and 43 for Paper 4), each with its own mark scheme, so make sure the mark scheme number matches your paper.

IB Diploma Biology

IB past papers and markschemes are not free. They are sold as downloads through the Follett IB Store, the IB's official shop, which sells exam packs and individual papers for each session. Before you buy anything, ask your teacher: schools can get past and specimen papers through the IB's Programme Resource Centre. Papers from before 2025 were written for the old syllabus, so some topics have moved or gone. Our guide to IB Biology Paper 1 and Paper 2 explains the new paper structure.

How to practise biology past papers by topic

Use this routine for one topic at a time, for example transpiration in Cambridge IGCSE or inheritance in Edexcel GCSE. It works for every board.

1. Pick one topic and revise it. Read the revision notes for that topic, then tick it off on your specification checklist so you know exactly what can be asked. For example, start at the Cambridge IGCSE transport in plants topic page.
2. Do our original topic questions. Each subtopic has exam-style questions with a mark scheme, such as 0610 transpiration questions. They let you find gaps before you use up real papers.
3. Find the same topic in the official papers. Open two or three recent papers from your board and pick out every question on that topic. Use the topic list in our course's past papers page or your specification to recognise them. Do them under timed conditions, roughly one minute per mark.
4. Mark with the official mark scheme. Give yourself a mark only when your answer says what the marking point says. Write down the exact wording you missed, not just the score.
5. Read the examiner report for those questions. It tells you what most students got wrong and what the examiners wanted, which is often the fastest way to pick up marks.
6. Fix the gaps and come back a week later. Go back to the notes and flashcards for anything you lost marks on, then retry the questions you got wrong.

If you are not sure how the marking works, read how IGCSE Biology is marked or GCSE Biology mark schemes explained before step 4. Self-marking only helps if you mark as strictly as an examiner would.

Exam questions by topic for each course

Every course on Clock it with SCI has exam-style questions for each subtopic, plus a printable topic test for each topic with answer lines and the mark scheme at the back. Use them for steps 2 and 6 above.

You can also start from the all-boards pages for exam questions and topic tests and pick your course there.

Edexcel IGCSE Biology questions by topic

Edexcel International GCSE Biology (4BI1) has five topics, but questions from any topic can appear on either paper. Paper 1 tests the core content and Paper 2 tests everything, including the Biology only statements. That makes topic practice especially useful: a single paper jumps between cells, ecology and inheritance, so it is hard to tell which topic is really costing you marks until you sort the questions yourself. The biggest topic, structure and functions in living organisms, has 15 subtopics on our site, so work through it in small chunks. Double Award students sit only Biology Paper 1, the same paper as 4BI1/1B.

0610 topical questions: Cambridge IGCSE tips

Cambridge IGCSE Biology 0610 has 21 content topics plus the experimental skills tested on the practical paper. Extended candidates sit Papers 2 and 4, Core candidates Papers 1 and 3, and everyone sits Paper 5 or Paper 6. For topical practice:

• Use Paper 2 (or Paper 1) for quick checks. Multiple-choice questions are short, so ten questions on one topic take minutes and show whether your recall is solid.
• Use Paper 4 (or Paper 3) for the written skills. Structured questions test whether you can explain and use data, which is where most marks are lost.
• Treat practical skills as their own topic. Paper 6 questions on planning, tables and graphs are best practised together. See our IGCSE Biology Paper 6 guide and the 0610 practicals.
• Check the Supplement content. If you are Core, skip anything labelled Supplement in our notes and questions; if you are Extended, you need it all.

IB Biology questions by topic

The 2025 IB Biology syllabus is organised by four themes (unity and diversity, form and function, interaction and interdependence, continuity and change) across four levels of organisation, and any theme can come up on either paper. Because past papers cost money and only a few sessions exist for the new syllabus so far, original topic questions matter more for IB students than for anyone else. Use our questions for every subtopic, keep the papers you buy or get from school for timed practice, and read how the IB Biology exams work so you know what Paper 1B and Paper 2 Section B look like.

How many past papers should you do, and when?

There is no official number, but a sensible plan for most students looks like this:

Keep the most recent one or two series for full mocks near the end, so you have unseen papers left when you need them. Check when your papers are in our biology exam dates 2027 guide and count back from there.

Common mistakes with past papers

• Doing papers before revising. A past paper tests what you know; it does not teach it. Revise the topic first.
• Marking too generously. "Basically what I meant" is not a mark. If the key word is missing, so is the mark.
• Only recording the score. The score tells you how you did; the missed marking points tell you what to do next.
• Skipping the examiner reports. They are free for most boards and show the exact misunderstandings that cost marks.
• Using the wrong syllabus or tier. Check the specification code, tier (Foundation or Higher) and level (Core or Extended, SL or HL) on the front of the paper.
• Using up every recent paper too early. Save the newest ones for timed mocks.

If you want help working through past papers or a topic that keeps costing you marks, we offer 1-to-1 tutoring online and in Dubai.