He writes the answers in a clear way, which makes them easy to study. I used this A2 pack one week before the Unit 4 exam — it helped me score 112 UMS.
Karim El-Sayed · Egypt
112 UMS
1 week's prep
Unit 4
EDEXCEL IAL BIOLOGY · UNITS 1–6 · 2019–2026
See exactly how every answer earns its marks — so you stop losing marks you've already earned.
Every past paper, every session, fully worked in the precise language of the mark scheme — with an examiner's tip on every question and a pointer to the exact notes to revise. Students have climbed 2–3 grades revising from this alone.
Trusted by hundreds of students across the Gulf, Asia & beyond
3 / 3 MARKS
Q · Explain why it helps that this blood vessel branches directly from the aorta. 3 marks
It is a coronary artery, carrying oxygen-rich blood to the heart's own muscle.
That muscle needs the oxygen to release the energy it uses to contract.
The aorta carries blood at the highest oxygen
level, so branching from it supplies the heart best.
Mark scheme oxygenated blood to heart muscle · for respiration · aorta = highest-oxygen blood
Examiner's insight:
name the coronary artery and mention oxygen — writing only "to the heart" won't score.
📘 Every paper, every session
🗓️ 2019 → 2026
✍️ Answers in mark-scheme language
🔎 Instant Answer Finder
⭐ 4.9/5
from students
For 20 years I watched students do past paper after past paper — and still not know if their answers would score.
Hi — I'm Hosni. For over 20 years I've taught IGCSE and A-level Biology and Chemistry, and I'm Head of Science at a British school in Kuwait. I've written 8 published textbooks used by students around the world.
Here's the problem I kept seeing. Hard-working students would grind through past paper after past paper — then walk into the exam still unsure whether their answers actually earned the marks. The official mark schemes were too terse and scattered to learn from, and chasing answers across PDFs ate the time they should have spent revising.
So I started writing full worked answers in the exact language examiners reward — with the key terms marked, the common slip-ups flagged, and a pointer to the precise notes to revise. The students who used them started jumping two, sometimes three grades. That's what this is.
20+ years teaching Biology & Chemistry
16 years at A-level
8 published textbooks
Head of Science, Kuwait
See a real sample ↓
Here's what every answer looks like.
Every question in the pack looks like this — nothing left to guess.
What's inside
Seven tools, one goal: that you never lose a mark you could have earned.
The Full-Mark Worked Answer
Every question answered the way the examiner wants it phrased, key terms highlighted — so you learn to write for the marks , not just about the topic.
Examiner's Insight
Where students commonly lose the mark, and the trap to avoid — so you're not making the same slip thousands made before you.
Mark Scheme, Decoded
The official marking points in plain English — so you can mark your own work honestly, without guessing what the shorthand means.
The Revise-From Pointer
Each answer points to the exact topic to revise — so a wrong answer is a five-minute fix, not a vague worry.
The Answer Finder New — included
Enter the year, session and question number and read the worked answer instantly — so you're never scrolling through PDFs hunting for one question.
Topic-Sorted Question Banks
The same questions grouped by topic — so you can drill one weak area at a time instead of revising everything at once.
Printable Practice Papers
Download blank papers and attempt them exam-style on paper — so your practice feels exactly like the real thing.
See inside before you buy
Browse a real sample from any unit.
Turn the pages before you buy — a real sample from each pack.
Success stories
Real students, from across the Gulf and Asia — in their own words.
…and hundreds more.
Pricing
One-time payment — no subscription, ever. Two years' access, delivered by email right after purchase and viewable on any device.
✓ One-time payment · no recurring fees · no auto-renewal
Everything below is included in every package:
- Every past paper, every session 2019 → 2026 — fully worked
- Full worked answers in mark-scheme language
- Examiner's Insight on every question
- Mark scheme decoded in plain English
- Revise-From pointers on every answer
- Topic-sorted question banks
- Printable practice papers
- The Answer Finder tool
- View on any device · 2 years' access
- Ask by email or WhatsApp
Single Unit
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Units 3 & 6 come as part of the bundles →
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Questions, answered
What's included?
Every question from every Edexcel IAL Biology exam paper on the current syllabus, 2019–2026, all sessions, fully worked. Plus the questions sorted by topic, printable practice PDFs, examiner insights, and the Answer Finder tool.
When will I receive it?
Right away. As soon as payment goes through, you'll get an email with your access links.
How long do I keep access?
Two years from purchase. Email me to extend.
How do I pay?
Any bank or credit card; or PayPal (no PayPal account needed).
Can I ask questions if I get stuck?
Yes — email admin@chem-bio.info
or WhatsApp +965 5137 5709.
Can I use it on more than one device?
Yes, on any device and several at once with the same account. The practice booklets are downloadable and printable. The answers stay online because I update them continuously — adding notes, the latest examiner reports and newly released papers — so you always see the current version.
Stop throwing away easy marks.
Join hundreds of students who now know exactly what a full-mark answer looks like — and where to find every mark.
Get every worked paper →admin@chem-bio.info · WhatsApp +965 5137 5709
