LearnOS · A-Level Biology
Explore Biology. Build understanding and exam confidence.
Molecular biology, genetics, physiology and ecology. Explore real topic objectives and a guided sample of how the subject is taught. Browse every section before deciding to subscribe.
Your LearnOS specialist
Maya · Biology
Clear explanations, purposeful visuals and exam-focused reasoning
19
Sections
123
Topics
2
Practice modes
Explore the full A-Level curriculum
Biology learning pathways
Expand any section in the Learning Journey to view its original registered topic titles, or explore a topic's learning structure.
A look inside the teaching
Discover Biology
In Biology, begin by recognising the key ideas, understanding their meaning, and seeing how a specialist tutor reasons through a problem.
Recognise the skill
Identify the topic and the clues that show which method is appropriate.
Understand the idea
Make the vocabulary and central principle clear before attempting exam questions.
Follow a model
See a short, worked demonstration of the reasoning used in the subject.
Public demonstration · Biology
Enzyme specificity: The active site binds substrates with complementary shape and chemistry.
The enzyme–substrate complex makes the reaction more likely by reducing activation energy; enzymes are not consumed.
Link the molecular structure to the biological function.
Continue with premium learning
Unlock the full lesson and practice
See all teaching stages, interactive explanations, worked examples, activities and timed exam practice. Introductory access is £1 for 10 days on the monthly plan, followed by £24.99 per month.