2025 OCR GCSE Biology B Higher Tier PAPER 4 + MARK SCHEME J257/04

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OCR GCSE Biology B (Higher Tier) – Paper 4: Topics B4–B7 (J257/04) + Mark Scheme (2025)

This paper assesses students’ understanding of the later Biology B topics in the OCR GCSE (9–1) specification, focusing on the application of biological knowledge to unfamiliar contexts, data analysis, and practical-based questions.

Paper 4 covers Topics B4 to B7, which include:

B4: Community-level systems – ecosystems, biodiversity, nutrient cycles, and human impacts on the environment
B5: Gene expression and regulation – DNA, genes, protein synthesis, mutations, and modern biotechnology
B6: Global challenges – food security, climate change, sustainability, and the use of biological resources
B7: Additional higher-tier biology content – advanced concepts that require deeper understanding and extended responses

The exam includes a mixture of multiple-choice questions, short-answer questions, calculations, data interpretation, and extended-response questions, all designed to test scientific reasoning and exam technique at Higher Tier level.

The accompanying mark scheme provides:

Clear guidance on acceptable answers
Indicative content for extended responses
Level-of-response descriptors
Marking points for calculations and practical skills

This resource is ideal for exam practice, teacher-led revision, mock exams, and independent study, helping students understand how marks are awarded and how to structure high-scoring answers.