2025 OCR GCSE Biology B Twenty First Century Science Paper 3 and Mark Scheme Combined (J257/03 Breadth in biology (Higher Tier)

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This resource contains the 2025 OCR GCSE Biology B (Twenty First Century Science) Paper 3: Breadth in Biology (Higher Tier) together with the official mark scheme for specification J257/03.
It provides full coverage of the breadth content assessed in the Higher Tier exam, making it an essential resource for students aiming for strong grades in GCSE Biology B.

What’s included?

The complete 2025 Paper 3 exam (Higher Tier)

The corresponding official OCR mark scheme

Detailed examiner guidance showing how marks are awarded

A wide range of questions testing understanding across the entire Biology B specification

Content covering:
- Cells and biological molecules
- Genetics, variation and inheritance
- Disease, immunity and health
- Organ systems in animals and plants
- Photosynthesis, respiration and metabolism
- Ecology and environmental interactions
- Required practicals and scientific enquiry skills

Ideal for:

Students revising for the Higher Tier GCSE Biology B exam

Teachers preparing lessons, homework or mock exams

Exam practice sessions

Improving exam technique and applying mark scheme criteria

Checking understanding across the full breadth of the Biology B curriculum

Specifications

Author	Proficient Academic Tutor
Published	05 Dec 2025
Included files	PDF
OCR GCSE Biology B Twenty First Century Science J257/03 Breadth in Biology Higher Tier Biology GCSE Biology 2025 OCR Biology B 2025 Biology Paper 3 OCR exam paper OCR mark scheme