Launching 2026
IB Biology, marked to the mark scheme.
IB Biology is coming to Exaim in 2026, built for the IB Diploma Programme — every answer marked against the published scheme, point by point. Here is the full specification, and you can start free on GCSE and IGCSE today.
Every IB Biology topic.
The whole specification we’re building the course against — 4 topics, broken into the 33 subtopics you revise and get tested on.
Unity and diversity
8- Water
- Nucleic acids
- Origins of cells
- Cell structure
- Viruses
- Diversity of organisms
- Classification and cladistics
- Conservation of biodiversity
Form and function
7- Chemical properties of carbon compounds
- Cell specialisation
- Gas exchange
- Transport
- Muscle and motility
- Adaptation to environment
- Ecological niches
Interaction and interdependence
8- Enzymes and metabolism
- Cell respiration
- Photosynthesis
- Cell signalling
- Neural signalling
- Integration of body systems
- Populations and communities
- Transfers of energy and matter
Continuity and change
10- DNA replication
- Protein synthesis
- Mutations and gene editing
- Cell and nuclear division
- Gene expression
- Inheritance
- Sexual reproduction
- Natural selection
- Evolution and speciation
- Sustainability and change
What IB Biology will do, from day one.
The same thing our GCSE and IGCSE courses do today — you can try all of it free right now, on the subjects that are already live.
Marked to the mark scheme
Every written answer checked against the published scheme, point by point — with the wording that would have earned the marks you missed.
Built for your exam board
Practice written for the specification you actually sit, not one generic course with your board’s name on the front.
Always know what to revise
A study plan that reorders itself around the topics you keep dropping marks on, so the next session is always the one that moves your grade.
IB Biology lands in 2026.
Start free on GCSE and IGCSE today, and you’ll be first to know the day IB Biology goes live.