OCR GCSE Biology Paper 1 2025 Mark Scheme

Access the official OCR GCSE Combined Science B Twenty First Century Science J260/01 Biology (Foundation Tier) June 2025 mark scheme PDF. This examiner-approved OCR document contains the exact accepted answers, mark allocations, assessment-objective guidance, level descriptors, and examiner instructions used during marking for the June 2025 GCSE Biology examination series.

The mark scheme includes detailed answers and examiner guidance for communicable diseases, pathogens, hormones, diabetes treatment, quadrat sampling, ecosystems, genetically modified tomatoes, antibiotics, Tay-Sachs disease, stem cells, evolution, blood circulation, mitosis and meiosis, osmosis, and required practical-style questions. It also explains how OCR awards marks for AO1 knowledge, AO2 application, AO3 analysis, calculations, graph interpretation, and extended-response biology questions.

Use this OCR J260/01 mark scheme alongside the matching OCR GCSE Biology June 2025 question paper on markscheme.net for accurate self-assessment, timed mock-exam practice, and examiner-style revision. Fully updated for the 2025/2026 academic year and instantly downloadable for effective OCR GCSE Biology preparation.

This document is designed for OCR GCSE Biology students preparing for the 2026 examination series, especially Foundation Tier students studying OCR Combined Science B Twenty First Century Science. It is ideal for Year 10 and Year 11 students, resit candidates, independent learners, and home-schooled students who want to understand exactly how OCR examiners award marks in GCSE Biology.

It is also highly valuable for GCSE Science teachers, tutors, intervention coordinators, revision-course providers, and parents supporting structured revision. The mark scheme can be used to model high-level answers, improve scientific terminology, analyse examiner expectations, strengthen AO1/AO2/AO3 exam skills, and identify common mistakes before the 2026 OCR GCSE Biology examinations.