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5 Oct 2026
Richard Scarr
It is with great sadness that we have to announce the passing of Richard Scarr. He was always an enthusiastic biologist and a dedicated educator. After reading Biology at Kings College in London he taught...
12 Aug 2026
Exam practice questions
Over the summer we have completed a full set of exam practice question pages, one for each topic. These pages are great for homework or revision. The Exam practice concept; The pages all have “exam practice”...
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See all"This year is my first year teaching IB Biology. The In Thinking Biology site has proven to be immensely valuable to the quality and delivery of my lessons."
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D Y Patil International School
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Diocesan School for Girls
Subscriber comments
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Dear Monira, Thanks for your request. I expect you a referring to activity 1, the labels for the Brain diagram. I'll add some model answers for this activity in the morning. Activity 2 and Activity 3 already have model answers, you can display...
The brain (2025) -
Dear Lauren, Thanks for your comment, you make a good point. The new Biology Data booklet for exams beginning 2028 contains a diagram of a single amino acid. Therefore if students are asked to describe the structure of a di-peptide (as question...
B1.2 Proteins - model answers -
Dear Elizabeth, Thanks for your comment. Yes, this update to the Ensembl site does change the look of things. I'll fix this as soon as I can.Best wishes, David
Genome Projects (2025)
Lauren
This doesn't match the original question sheet.
Activity 2 - Overproduction model answers