It's getting closer to the final A-Level Biology Paper 3 exam.

The OCR A-Level Biology Paper 3 Exam is on Tues 16th June. Here are my observations about which topics haven't been examined for a while and could come up.

It is vital to revise and prepare for ALL topics. This is not a set of predictions for the paper, rather a set of observations of the topics that haven't been deeply assessed for a while.

So, we need to think about which topics were missing from papers 1 and 2. So once you have done these papers – think about which topics were missing.

Also, we can think about what hasn’t been done so recently on paper 3.

2026 Ideas based on previous paper 3’s:

• Lungs (last 2021)
• Mark-release-recapture
• Variation (last 2019)
• Thermoregulation (last 2019)
• Excretion / kidney (last 2020), liver (never)
• Hormones
• Respiration – but low likelihood
• Cellular control stuff – lac operon and maybe mutations not cAMP as in 2025
• Hardy Weinberg (last 2022)
• Speciation
• Biomass transfer through ecosystems and nitrogen / carbon cycles
• Interactions between populations
• Be ready for both paired and unpaired t-test and Spearman’s rank (last 2021)
• Paper 3 likes to dip into biological molecules structure and the tests and also cell structure. Watch out for enzymes.
• Biological drawing

Good luck everyone!