Biology › About
About InkBiology
A free A-level biology library: written explainers, a diagram drawn for the point being made, original questions with point-by-point marking guides, and cards that schedule themselves.
What is here
70 lessons published so far across 21 units, 212 figures drawn for the library, 416 original questions, and the revision layer that hangs off them: a confidence checklist over every objective, flashcards, a definitions index and the twelve practical capabilities. It is a library rather than a platform: nothing to sign up for, nothing to buy, and no advertising.
How a lesson is written
Most lessons open by naming something students half-believe and arguing with it, because a misconception is often what is standing between the reader and the mark; where a topic has no misconception worth the panel, the lesson starts at the objectives instead. Then the explanation with figures drawn for the points they carry, the key terms defined as the lessons use them, worked reasoning, a guided attempt, exam advice tied to real command words, and a self-check with a multi-point answer. A gate holds the parts a lesson does carry to that standard; it no longer forces every panel into every lesson.
What checks it
Eighteen gates run on every build. They hold the lesson shape, a floor on how much a lesson actually says, at least two figures per lesson written with accessible names separate from their captions, every figure style accounted for, every internal link and anchor resolving, a mark scheme whose points equal its marks, and a list of phrasings examiners penalise that may appear only where a lesson is correcting them.
What no gate can check is whether the biology is right. A full editorial review of the library ran in August 2026, lesson by lesson, and the corrections it produced have been applied; the corrections page says how to report anything it missed, and mistakes found since are fixed as they are found. A sign-off by a practising subject teacher remains on the release checklist the build reports every time it runs.
What it does not claim
No exam board is covered. The curriculum here is original and written to hold more than any one specification asks for; a board becomes covered only when every one of its statements has been checked against these units, one statement at a time, and that work has not begun. Every lesson does name the statements it is written against, and the boards page records the eleven routes and the source version of each.
Who is behind it
Ink Learning Ltd is a company registered in England and Wales, number 17382113. Registered office: 71-75 Shelton Street, Covent Garden, London WC2H 9JQ. It also publishes InkPhysics and InkMaths, which share this address.
If something here is wrong, the corrections page says how to tell us and what happens then. Every page also carries a link to report a mistake on that page.