Learn something now in 2 minutes
The AQA GCSE Biology specification says you should be able to:
"interpret and explain simple diagrams of negative feedback control."
This applies to control of glucose and thyroxine and is for the higher tier only (grade 7 to 9).
Welcome to GCSE Science 2025
GCSEs are approaching fast and that might be stressing you out. The good news - it's not too late to maximise your grade.
Plan your revision without wasting time
You probably don't need to revise everything - that's why you need a plan.
The Science Break planner helps you:
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Track your confidence by topic
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Focus on what you actually need to revise
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avoid wasting time jumping between topics
There is time to revise well. The planner helps you use it properly.
Free copy - register to get started
New for 2025 GCSEs
Want just the whole unit summary videos for quick and thorough recaps?
All Paper 2 whole unit overviews (Biology + Chemistry) now available via YouTube Members - £4.99/month
Start for free
Full access - Structured & complete. Get exam ready.
Resources for Paper 1 & Paper 2:
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All videos for Biology, Chemistry & Physics, Triple or Combined
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Exam practice questions for every video lesson
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Structured learning pathway
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Whole unit videos for Biology & Chemistry, Triple or Combined
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Revision guides to go with the whole topic videos
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Topic tests to go with whole unit videos
My son watched all the physics, bio and chem videos that exactly followed the aqa trilogy spec and secured all 9s at gcse, thanks for creating, well worth the money.
—Andrea P, parent 2022
A friend of mine recommended you after using your videos a few years ago. C was so behind in science, we were really worried. Your videos were a life saver. Easy to follow and well explained. They covered everything in detail. The result - 8, 8, 7. We were over the moon. Especially as she hadn't got above grade 6 in her mocks. I will be recommending to everyone!
— Keira S, parent, August 2022
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What's available from The Science Break
* Whole topic revision not available for physics yet
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