Write a full answer. Get it back marked, one mark point at a time.
Learn each topic step by step with Drago, then write a full exam answer and get it back marked against your board’s mark scheme, with the reason for every mark.
Start free · No card needed
Lessons that teach you, a step at a time.
Every subtopic on your specification is a short lesson, with Drago beside you the whole way.
- 1One small step at a timeThe notes come in bite-sized pieces. Press Next when a piece makes sense.
- 2Flashcards straight afterSay the answer in your head, flip, and see what stuck.
- 3The whole subtopic on one pageA mind map joins it all up before you move on.
- 4A quick quiz to lock it inThen the next lesson is one tap away.
New idea: the active site. Picture a lock and its key.
Enzymes
The active site
Every enzyme has an active site shaped to fit one substrate, like a key in a lock.
Heat it past 50 °C and the shape is lost. The substrate can no longer fit.
One question, start to finish.
The whole loop, in four steps.
01
Answer a real exam question
Questions written to your specification, in the style and mark allocations of the real paper.
Your question
8 marksExplain how the rates of photosynthesis and respiration are affected by temperature.
Your answer
“As temperature rises both rates increase because the enzymes have more kinetic energy, so there are more collisions. Above the optimum the enzymes denature and photosynthesis slows down.”
02
Get marked against the scheme
Your answer is checked against each mark point, with the reason every mark was awarded or refused.
Mark scheme check
5 / 8As temperature rises both rates increase because the enzymes have more kinetic energy, so there are more collisions. Above the optimum the enzymes denature and photosynthesis slows down.
- Links temperature to kinetic energy+1
- More successful enzyme–substrate collisions+1
- Denaturing above the optimum+1
- No reference to the active site changing shape−1
- Respiration treated only by implication−1
03
See the words that would have earned it
The feedback names the missing phrase: the gap between knowing a topic and scoring on it.
What to write next time
A better answer
“…the active site changes shape so the substrate can no longer bind”
Your examiner’s note
You are not missing the topic. You lost three marks because the explanation stopped a step early. Write “the active site changes shape so the substrate can no longer bind”, and answer for respiration separately — the scheme credits each process on its own.
04
Every dropped mark becomes practice
Your plan reorders itself around what you lost marks on and your exam dates. Secured topics stop reappearing.
Two ways to test yourself.
Every subtopic and every topic has its own test. Take it the way that suits you today.
Question by question
Answer one at a time and each answer is marked the moment you hand it in. Stuck? Ask Drago for a hint.
Exam mode
The whole paper, timed like the real exam. Hand it in and every mark is explained.
Only one step in the chain is done by a model.
A mark scheme is a list of points you made or missed. Exaim checks each one.
01
Your answer
Typed, handwritten or a photo
02
Your board’s mark scheme
AQA, Edexcel, Cambridge, Oxford AQA, IB
03
Point-by-point check
The only AI step
04
Marks, with reasons
Awarded or refused, one point at a time
05
Your plan updates
Dropped marks become scheduled practice
In schools, a teacher confirms or corrects every mark before students see it.
What Exaim is for, and what it is not
Designed for
- Learning your course at your own pace
- Practising exam questions on your specification
- Getting marked, with the reason for every mark
- Learning why “describe” and “explain” score differently
Not for
- Coursework and NEA
- Controlled assessment
- IB Internal Assessment, Extended Essay, TOK
- University applications and personal statements
Nothing in Exaim writes work you hand in. If you’re unsure about your school’s policy, ask your teacher first.
Meet Drago.
Your study buddy. He teaches the lessons and is there whenever you’re stuck.
Knows the page you’re on
Ask about the notes, a flashcard or a question you just got marked, and he already has it in front of him.
Hints, not answers
On a test you’re sitting he nudges you towards the mark. The full answer comes after it’s marked.
Safe for students
He stays on schoolwork, never asks for personal details, and chats are deleted after 30 days. If a message suggests a student may need help, a person on our team is told.
What you get with every Exaim course.
Real exam questions, marked properly, and a clear next step.
Marked like an examiner would
Checked point by point against your board’s scheme, with the wording each mark needed.
Built for your exact board
Questions, notes and mark schemes follow your specification.
Subtopic and topic tests
Short tests while you learn, a full topic test when you’re ready.
Handwritten work included
Photograph a written answer and it’s marked the same way.
A plan that reorders itself
Every dropped mark becomes practice, so your weakest topic is always next.
Start with a question you think you got right.
Seven days free. Then $9.99 a month or $99 a year.
- No card needed
- Cancel any time
- Every subject you take