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AR
1. A 65-year-old man with a history of chronic alcoholism is admitted with confusion and ataxia. Thiamine deficiency is suspected. Which cofactor-dependent step in carbohydrate metabolism would be most directly impaired?
AFructose-6-phosphate to fructose-1,6-bisphosphate
PFK-1 - the rate-limiting step of glycolysis. Driven by ATP, not a thiamine cofactor.
B1,3-bisphosphoglycerate to 3-phosphoglycerate
Phosphoglycerate kinase (substrate-level ATP synthesis). No thiamine involved.
CPyruvate to acetyl CoA by pyruvate dehydrogenase
PDH uses thiamine pyrophosphate (TPP) as its cofactor - the link between glycolysis and the TCA cycle. Blocked in deficiency, the basis of Wernicke's encephalopathy.
DGlucose-6-phosphate to fructose-6-phosphate
Phosphoglucose isomerase - a simple isomerisation with no cofactor of this kind.
EGlyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate
GAPDH - depends on NAD⁺ and inorganic phosphate, not thiamine.
How it works
Three steps from lecture to marked paper.
01
Choose your content
Pick the lectures you're revising from the library - or upload your own slides instead.
02
Build the paper
Set your question types, how many, and the difficulty - then pick your exam mode and settings.
03
Practise & review
Answer, get instant marking and explanations, then review every mistake and watch your topic accuracy climb.
Why ImpulsiQ
Not another question bank.
A fixed bank runs out. ImpulsiQ writes fresh questions from every lecture in your course.
Built your way
Pick the mix, the length and the difficulty. Timed or untimed.
Every answer explained
Why the right answer is right, and why the rest are wrong.
Ask ImpulsiQ AI Pro
Still stuck? Ask follow-ups, answered from your own lecture content.
Shared by your cohort
Post great questions to your course's community bank.
Fix your weak spots
Accuracy by topic, a spaced-repetition Mistake Bank and one-click Focus Exams.
Why ImpulsiQ exists
Revision shouldn't be passive.
- Rereading slidesRereading isn't testing.
- FlashcardsRecognising isn't recalling.
- Questions from your own lecturesMarked, explained and tracked.
ImpulsiQ was started by a medical student who kept running out of practice questions.
What students say
Used by award-winning medical students.
Real feedback from ImpulsiQ users at Imperial, shared anonymously with permission.
"ImpulsiQ generates literally unlimited lecture-specific questions that prepared me for my exams better than I could've anticipated. The EFA simulator lets me try questions under exam pressure, and the AI marking generates marking points which are super easy to understand and memorise."
Year 1 medicine
Imperial College London
"If you want detailed question practice with full explanations and a question bank directly tailored to your lectures at Imperial, ImpulsiQ is the website for you. In the end I think I learnt more from ImpulsiQ than my lectures."
Year 1 medicine
Imperial College London
"I always wanted a resource accurate to our teaching slides specifically, that would give us an infinite source of questions — and this was exactly that. Aside from the small issues I've mentioned, it is a wonderful app and I recommended it to all my friends."
Year 2 medicine
Imperial College London
"ImpulsiQ is one of the most useful AI-powered revision platforms I've used. What makes it stand out is that the questions and explanations actually feel thoughtful and tailored rather than generic. It encourages active learning instead of passive revision."
Year 1 medicine
Imperial College London
"Very useful — honestly saved my exams, and helped me know if I truly understood a lecture or not and if I had to go over it again."
Year 1 medicine
Imperial College London
"ImpulsiQ is an extremely helpful, relevant, easy-to-use website that was a huge help for my exams. It helped to make revision enjoyable and targeted."
Year 2 medicine
Imperial College London
Questions
Right now the library covers Imperial - Year 1 (PoM & BRS) and Year 2 (BRS), plus UCL - Year 1, with more years and medical schools on the way. Not listed yet? You can still generate from your own uploaded lecture slides, wherever you study.
From your actual curriculum. Pick lectures straight from the Lecture Library, or upload your own PDF and PowerPoint slides, and ImpulsiQ writes fresh, exam-style questions from that material - unlimited, and never the same paper twice.
Every question is generated and then checked by a second AI pass before it reaches you, and each answer comes with a full explanation so you can see the reasoning. It's a revision tool, not a replacement for your lectures - always sense-check anything surprising against your official notes.
Pick untimed practice for instant per-question marking and explanations, a full timed paper marked at the end like the real exam, or a custom mix of the two. Your accuracy is tracked by topic either way.
You can start for free, no card required. Plus and Pro unlock unlimited exams, larger papers, slide uploads, skill trainers and more, from £4.99 for 30 days (or save with a yearly plan) — a one-time payment, no subscription. See the full breakdown on the pricing page.
Yes. ImpulsiQ runs in your browser on any device - build a paper on your laptop between lectures, or squeeze in a few questions on your phone during the commute.
Still have a question? Email us at hello@impulsiq.co.uk.