Selected student pages
Activities
Genome Projects (2025)
This topic explores the concept of genomes in species and in individual cells. There is discussion of variation between the genomes of cells, individuals of a species and between different species. Students...
eBook
D2.2 Gene expression - student friendly summary
Blue text shows extra clarification or guidance. Guiding questions SL and HL There is No SL content in this topic Additional Higher level D2.2.1 - Gene expression is the mechanism by which information...
eBook
A4.2 Conservation of biodiversity - student friendly summary
This is a student friendly summary list of the IB DP Biology Guide for Topic A4.2 Conservation of biodiversity Unity and diversity - ecosystems SL and HL: 3 hours Guiding questions Ultimately this...
eBook
D1.3 Mutations - 5 Essential revision points
This is a '5 Essentials' revision (or review) sheet for Topic D1.3 Mutations and gene editing. It will help students remember the five most important details required for the topic. SL and HL - The...
Activities
The skeleton & joints - model answers
These are suggested model answers for the activity Synovial joint worksheet As model answers they don't cover all the possible options for correct responses, but they provide a very good guide for students...
Activities
Scientific Investigation into making yoghurt (2025)
This lab could be used as a 'mini IA' to introduce students to the Scientific Investigation which they will do as internal assessment (IA), The activity uses microscope skills from this topic to test...
Activities
Origins of water - model answers
These are suggested model answers for Activity 2 - Where did water the earth's water come from? on the page The origins of water on Earth HL (2025). As model answers they don't cover all the possible...
Review/revision
40 written tasks for revision
All forty DP Biology topics shown in this table have a written exam question for each topic. These are really useful for revision or checking progress in examination technique. Each written task includes:...
Activities
Spontaneous origins of the first cells
This activity gets students to explore the evidence for the spontaneous origin of the first life on Earth and the research which has tried to identify the last unique common ancestor (LUCA) An information...
Activities
Mammalian lungs (2025)
The mammalian lungs are highly specialised to maximise the speed of gas exchange. This series of activities discusses the adaptations of alveoli that enable this to occur and how the lungs are ventilated....
Activities
Lytic & lysogenic cycles - model answers
These are model answer for activity 2 and Activity 3 on the page Virus structure & function (2025) These are suggested model answers for the activity IB style questions about lytic and lysogenic cycle...
Activities
Asexual & Sexual reproduction
This topic covers the processes of meiosis and fertilization in sexual reproduction. The alternative of asexual reproduction is compared with sexual reproduction and there are comparisons of male and...