2025 OCR A LEVEL BIOLOGY A H420/01 Biological Proc - Study guides, Class notes & Summaries
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Package deal
June 2025 OCR A-Level Biology A (H420) | Papers 1, 2 & 3 Combined Question Papers & Mark Schemes
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--33January 2026
- This verified bundle includes all June 2025 OCR A-Level Biology A (H420) exam papers — Paper 1: Biological Processes (H420/01), Paper 2: Biological Diversity (H420/02), and Paper 3: Unified Biology (H420/03) — provided as merged question papers with official mark schemes. A complete and reliable resource for A-Level exam revision, past-paper practi
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$12.98 More Info
Pristine01
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Exam (elaborations)
2025 OCR A-LEVEL BIOLOGY A H420/01 Biological Processes Question Paper & Mark Scheme (Merged) June 2025 [VERIFIED]
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5.0(1)5.0-108January 20262025/2026A+Available in bundle
- 2025 OCR A-LEVEL BIOLOGY A H420/01 Biological Processes Question Paper & Mark Scheme (Merged) 
June 2025 [VERIFIED] 
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Section A 
You should spend a maximum of 20 minutes on this section. 
Write your answer to each question in the box provided. 
1 Which option describes a function of inorganic ions? 
A Ca2+ is pumped across the membrane of a neurone to establish the resting potential. 
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B Cl – and HCO – are involved in transport of oxygen in the blood. 
C Plants need NO – for ...
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$9.99 More Info
Pristine01