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Activities
ATP a suspected cause of long covid (2025)
This activity covers the structure and importance of ATP as an energy currency in cells. It begins with a reading and analysis task which introduces the importance of ATP in cells, the role of the mitochondrion...
Activities
ATP structure and function - model answers Free
These are suggested model answers for the activity, ATP structure and function - IB style questions on the page ATP a suspected cause of long covid (2025) As model answers they don't cover all the possible...
eBook
A4.1 Evolution - revision quiz Free
This test contains a set of revision questions to help students prepare to be assessed on this topic. There are several question styles and answers with explanations....
eBook
A2.3 Viruses - revision quiz HL
This test contains a set of revision questions to help students prepare to be assessed on this topic. There are several question styles and answers with explanations....
Activities
Innate & adaptive immune system (2025)
This series of activities explores the components of the innate and adaptive immune responses. First, the differences between the two systems are looked at. Then students mark a piece of student work...
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Activities
Antibiotics & vaccination (2025)
In this series of activities students learn to explain how antibiotics work and how resistance to antibiotics can occur. Then the focus shifts to how vaccinations work, they discuss some of the advantages...
Activities
Antibiotics & vaccination - model answers
As model answers the two sheets on this page demonstrate how to write very good answers in sentences, they don't cover all the possible options for correct responses, but they provide a very good guide...
Assessment
External Assessment - some pointers
These points describe the three exam papers and the styles of questions to expect in each one. There are several styles of exam question and included in this page are suggestions for answering the questions...
Activities
Introduction to the activities
This section contains all the learning activities. Listening and reading about Biology is one way to learn but we remember much more and understand concepts more clearly if we are actively doing something...
eBook
eBook introduction
This section contains learning activities organised into the 40 topics there is a page for each topic. Listening and reading about Biology is one way to learn but we remember much more and understand...