Edexcel International GCSE (IGCSE) Biology · 4BI1 · Papers 1 & 2 · 2019–2026

Every Edexcel IGCSE Biology Past Paper, Solved the Way Examiners Actually Mark Them

Complete, classified past-paper solutions with model answers in mark-scheme language — plus a practice app — so your child stops losing marks on questions they already understand.

Complete Biology notes eBook included free with this pack

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See how to use IGCSE past papers as a training tool instead of simply checking a score. The video covers mark-scheme interpretation, written-answer structure and how worked solutions help you recognise where marks are being lost.

Every exam series — nothing missing
2019 2026

Every past paper from 2019 right up to the most recent 2026 sessions — fully solved and classified. The latest papers are the ones free sites never post, and they are the truest rehearsal for the exam your child actually sits.

★★★★★

“The answers explain the reasoning behind each marking point. After only a few days of practice I felt much more confident about writing for full marks.”

Ananya Iyer · IGCSE Biology · IN
★★★★★

“The recent papers are included and everything is classified by topic. I could quickly see which areas needed more practice.”

Aram Babikian · IGCSE Biology · LB
★★★★★

“The investigation answers are written in full — variables, method, repeats and safety. They showed me how to build a complete six-mark response.”

Dhafi Al-Marri · IGCSE Biology · QA
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“The biological drawings are professional and easy to copy as a technique — clear lines, correct proportions and accurate labels.”

Flurina Caviezel · IGCSE Biology · CH
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“The graphs are completed properly and the working is shown. I finally understood how to choose a scale without losing marks.”

Maryam Al-Suwaidi · IGCSE Biology · AE
★★★★★

“The question finder lets me reach one answer in seconds using the session, year and question number.”

Zeeshan Tariq · IGCSE Biology · PK
Hosni Showike teaching Biology and Chemistry
Meet Your Teacher

Solutions written around the mark scheme — not the textbook

I'm Hosni Showike, and I've spent over 20 years teaching, including 16 years at A-level, in IGCSE and A-level Biology and Chemistry. I hold master's degrees in biochemistry and biotechnology from the University of Brussels, and an international teaching certificate from the USA. I've authored eight science textbooks with more than 20,000 copies sold worldwide.

These solved past papers fix one specific problem: students who understand the topic but still drop marks — because no one showed them the exact wording examiners reward. Every answer is modelled on the mark scheme and examiner reports.

The Method

How Every Answer Is Built

Each solution works backwards from the mark scheme and examiner reports — so your child learns the exact wording that earns each mark, then practises it until full marks become routine.

Read the command word

Every question is decoded first — describe, explain, calculate — so you answer what the examiner is actually asking.

Write the mark-scheme points

Model answers show the precise phrasing that scores, point by point — no padding, nothing missed.

Check the examiner insight

Short notes flag the traps that cost most students marks — the ones examiner reports call out year after year.

Chem-Bio past-paper practice app showing topical and classified modes, choose topics or exam years
Practice App Included

Practise by topic or by year — on any device

Every book comes with the Chem-Bio practice app. Your child solves real exam questions, checks the full worked answer, and tracks what they've mastered.

  • Switch between Topical and Classified modes
  • Choose the topics or the exam years you want to drill
  • Enter any exam question number and jump straight to the worked answer
  • Regularly updated with the most recent exam sessions
What's Covered

Exactly What You'll Practise

Every question mapped to the Edexcel International GCSE (IGCSE) Biology (4BI1) specification — all five topic areas, across Papers 1 and 2, solved for the 2019–2026 sessions.

The foundations every later topic depends on.

  • Characteristics of living organisms
  • Variety of living organisms (five kingdoms, viruses)
  • Levels of organisation and cell structure

The largest section — and the biggest source of structured-question marks.

  • Transport, movement in and out of cells, enzymes
  • Nutrition in plants and humans
  • Respiration, gas exchange and transport
  • Excretion, coordination and homeostasis

Genetic crosses and reproduction — questions that reward precise wording.

  • Reproduction in plants and humans
  • Inheritance, DNA and genetic crosses
  • Variation, natural selection and evolution

Data-response and cycle diagrams that trip up rushed students.

  • Organisms and their environment, energy flow
  • Nutrient cycles (carbon and nitrogen)
  • Human influences on the environment

The applied topics that close every paper.

  • Food production (crops, microorganisms, fish farming)
  • Selective breeding and genetic modification
  • Cloning and biotechnology
See Before You Buy

Flip Through Real Pages

Turn the pages of the actual books — every paper is either fully solved or provided as classified topical questions.

Edexcel IGCSE Biology — Full Solved Exams, Paper 2
Edexcel IGCSE Biology — Topical Questions, Paper 1
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Get the Solved Past Papers

Instant access after purchase — every solved paper in one place, with two full years to revise at your own pace.

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Edexcel International GCSE (IGCSE) Biology four-book set: complete notes, classified past papers for Papers 1 and 2, and fully solved papers 2019 to 2026, tied with a gold ribbon
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One-time payment · 2 years full access

Complete Biology notes eBook included free with this pack

  • Every Paper 1 & 2 past paper solved (2019–2026)
  • Classified topical questions for targeted revision
  • Model answers in mark-scheme wording
  • Practice app — solve by topic or by year
  • Video explanations for the hardest questions
  • Direct WhatsApp support · 2 years access
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Eight-book Edexcel International GCSE (IGCSE) Biology and Chemistry bundle: complete notes, classified past papers for Papers 1 and 2, and fully solved papers 2019 to 2026, tied with a gold ribbon

Biology + Chemistry — Notes + Solved Papers

Both Edexcel International GCSE (IGCSE) sciences: every solved paper, both classified topical sets and both practice apps.

Both complete notes eBooks included free

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Edexcel International GCSE (IGCSE) Chemistry four-book set: complete notes, classified past papers for Papers 1 and 2, and fully solved papers 2019 to 2026, tied with a gold ribbon

Edexcel IGCSE Chemistry

The parallel Chemistry pack — Papers 1 and 2 fully solved and classified.

Complete Chemistry notes eBook included free

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Bonus 01

The Practice App — included free

Solve by topic or by year, enter any question number for the direct answer, and get every new session as it's added.

Bonus 02

Direct WhatsApp Access to Mr Hosni — included free

Ask about any question or answer and get a reply from the teacher directly — never a chatbot or a junior tutor.

Bonus 03

Video Explanations — included free

Watch the trickiest questions worked on screen, step by step, so the method sticks.

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Not satisfied within 7 days of purchase? Contact us and we'll process a full refund — no questions asked. We're confident in these solutions, and we want you to feel completely safe making this decision.

FAQ

Questions? Answered.

A full collection of worked exam papers plus topical past papers organised by specification section — the nature and variety of living organisms, human physiology, plant physiology, ecology and the use of biological resources. Every question is answered completely and in clear English, so the leap from knowing the topic to writing the mark-worthy answer is finally bridged.

Yes, and that clarity is the whole reason these exist. Official mark schemes are terse and often ambiguous to a student reading alone. Every answer here is rewritten as a proper, readable model response that still hits each Edexcel marking point, so your child understands both the answer and why it earns the mark.

It can. Biology marking punishes a single missing term ruthlessly. Our solutions flag the exact terms each point depends on, training your child to include them by habit rather than by luck.

Yes. The collection covers both written papers your child sits, with the longer extended-response and data questions solved in full, not just the short-answer ones — and it works for both the linear and modular routes.

It lets your child revise in two modes: Topical (choose the topics to drill) and Classified (choose exam years). They can also enter any exam question number and jump straight to the worked answer. It is updated regularly with the most recent sessions.

Yes — every series from 2019 right up to the latest 2026 papers, the very ones that are hardest to find free online. New sessions are added automatically at no extra cost, and access lasts two full years.

Your A* in Edexcel IGCSE Biology Starts Here

Every past paper from 2019 to 2026, solved and classified, with the practice app and model answers built around exactly what examiners reward.

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