Pearson Edexcel GCSE Biology Paper 1 2025 Mark Scheme

Download the official Pearson Edexcel GCSE (9–1) Biology Paper 1 Foundation Tier mark scheme for the Summer 2025 examination series (1BI0/1F). This official examiner mark scheme contains complete accepted answers, alternative marking points, practical-science guidance, calculations, level-based responses, and assessment criteria used by Pearson Edexcel examiners.

This Biology Foundation Tier mark scheme is ideal for students preparing for GCSE Biology exams, resit candidates, teachers, tutors, revision centres, and homeschooling learners who want to understand exactly how marks are awarded in the Pearson Edexcel specification.

The mark scheme includes detailed marking guidance for topics such as cell biology, DNA structure, the nervous system, osmosis, diffusion, enzymes, infection and response, vaccination, biological control, evolution, inheritance, selective breeding, reproduction, plant cells, synapses, reflexes, pathogens, immunity, and practical investigations.

Extended-response questions include indicative content, level descriptors, examiner notes, controlled-variable guidance, and scientific-investigation marking criteria for 6-mark Biology questions.

This official Pearson Edexcel GCSE Biology Foundation Tier mark scheme is designed for Year 10 and Year 11 students preparing for Summer 2026 GCSE examinations, students resitting GCSE Biology, and independent learners studying the Pearson Edexcel Biology specification.

It is also highly valuable for Biology teachers, science departments, tutors, intervention coordinators, homeschooling parents, and revision academies that require examiner-standard answers, assessment guidance, and official mark allocation criteria.