Pearson Edexcel As Biology Paper 2 2025 Question Paper

Download the official Pearson Edexcel AS Level Biology A (Salters-Nuffield) Paper 2 question paper from the June 2025 examination series (8BN0/02). This examiner-authentic PDF contains the complete Paper 2 assessment used in the live Edexcel AS Biology examination. The paper covers Development, Plants and the Environment, testing biological knowledge, practical understanding, data analysis, calculations, experimental design, and extended scientific explanation skills under real Edexcel exam conditions.

The paper includes questions on eukaryotic cell organelles, electron microscopy, mitochondria, Golgi apparatus, natural selection, adaptation, endemic species, xylem vessels, lignin, biodiversity, species richness, indices of diversity, continuous variation, polygenic inheritance, epigenetics, DNA methylation, and environmental influences on phenotype. Students are required to apply biological terminology, analyse data, interpret graphs, explain experimental evidence, and evaluate scientific investigations using accurate technical language.

Further sections assess understanding of Siamese cat fur colour, armadillo offspring and mitosis, agouti mice epigenetics, sperm-cell structure and fertility, sildenafil effects on mitochondria and sperm velocity, seed-bank storage, bacterial growth, antimicrobial properties of coffee plants, and sustainable biological materials. The paper also includes practical-investigation questions involving graphical analysis, variable control, biodiversity calculations, inhibition zones, and investigation design using realistic biological contexts.

The examination features multiple-choice questions, short-answer responses, graph plotting, data interpretation, practical-method evaluation, and extended-response questions linked to ecology, genetics, evolution, reproduction, plant biology, and microbiology. Students must demonstrate knowledge of biological concepts while interpreting evidence and applying scientific reasoning.

This 80-mark assessment is ideal for timed practice, classroom revision, mock examinations, independent study, and advanced AS Biology preparation before the 2026 examination series. Pair this paper with the matching Edexcel 8BN0/02 June 2025 mark scheme and examiner guidance on markscheme.net for complete examiner-standard revision and accurate self-assessment.

This document is designed for Pearson Edexcel AS Level Biology A (Salters-Nuffield) students studying the 8BN0 specification, especially Year 12 students preparing for the 2026 examination series who want authentic practice using official Edexcel assessment materials. It is particularly valuable for students aiming for high grades who need experience with biological explanations, graph plotting, biodiversity calculations, experimental design, data interpretation, and extended scientific responses under timed exam conditions.

The paper is also highly useful for Biology teachers, tutors, sixth-form colleges, revision centres, home-schooled learners, and retake candidates who require official Edexcel exam-standard resources for mock examinations, classroom assessments, practical-skills development, homework tasks, and structured revision programmes. It helps learners strengthen scientific reasoning, biological understanding, analytical skills, experimental evaluation, and exam technique before the 2026 AS Biology examinations.