The idea came up while preparing the PAU exams with my students, but thinking it could be useful for more people, I’ve made it publicly available for free.
There were already websites with Biology selectivity questions organised by topic, but none of them followed the current curriculum. Older questions were still grouped under blocks from a syllabus that is no longer in use, which isn’t very helpful when you’re preparing for today’s exams.
So I built biopau.cat: all the PAU Biology exam questions from Catalonia classified according to the current thematic blocks — Biomolecules and Metabolism, Genetics and the Cell Cycle, Evolution, Biotechnology, Microbiology, Immunology and Experimental Design — with the official marking guidelines for each question.
The questions are displayed directly on the website, with no need to open any PDF. And within each block, every question has a tag indicating the specific content it covers — the Krebs cycle, translation, natural selection, CRISPR, and so on. This makes it possible to search by keyword and quickly find all the questions that have come up on a particular topic, without having to go through block by block. Each question comes with the official marking guidelines, so you can not only practise but also understand exactly what is assessed in the exam.
I’ve also added the topics highlighted by the PAU coordination group, interactive study notes to review each block, and statistics on which topics come up most often and how frequently — useful for knowing where to focus your efforts when studying.
That said, this is a work in progress. Not all the questions are classified yet and the content will keep growing over time. The plan is to keep building it and update it every year with each new sitting.
You can find it at biopau.cat