- Guías de estudio, Notas de estudios & Resúmenes

aqa A-level BIOLOGY Paper 2 (7402/2) JUNE 2023 QUESTION PAPER . A student used chromatography to separate the different photosynthetic pigments in a chlorophyll solution. She had the following materials. Chromatography paper A ruler and pencil Suitable glassware A solvent (solvent A) 2 cm3 of the chlorophyll solution. Describe how she could use these materials to separate the photosynthetic pigments by chromatography. Using solvent A, the student separated five pigments. She then repeated h...

-

41 páginas

Escrito en 2023/2024

Grado A+

PaperPulse

Why are Microorganisms able to perform exchange via their surface? • have a large surface area to volume ratio • have a short diffusion distance • have low demand How do Microorganisms Obtain Nutrients & Remove Waste? • by exchange via their surface • nutrients (e.g. glucose, oxygen) move in by diffusion via their surface • waste (e.g. carbon dioxide) move out by diffusion via their surface Why can't Animals/Plants perform exchange via their surface? • have a small surfa...

-

13 páginas

Escrito en 2023/2024

Grado A+

twishfrancis

This is the official question papers and the final mark schemes

-

6 artículos

joy6

This is the official question paper and the final mark scheme

-

2 artículos

joy6

This is the official question paper and the final mark scheme

-

2 artículos

joy6

This is the official question paper and the final mark scheme

-

2 artículos

joy6

This is the final mark scheme

-

31 páginas

Escrito en 2026/2027

Grado A+

joy6

This is the final mark scheme

-

32 páginas

Escrito en 2026/2027

Grado A+

joy6

This is the official question paper

-

28 páginas

Escrito en 2026/2027

Grado A+

joy6

This is the official question paper

-

28 páginas

Escrito en 2026/2027

Grado A+

joy6

This is the official question paper

-

24 páginas

Escrito en 2026/2027

Grado A+

joy6

This is the final mark scheme

-

28 páginas

Escrito en 2026/2027

Grado A+

joy6

A-Level Biology Paper 1 June 2025 Mark Scheme Overview Exams With 100% Accurate Answers Newest Updated 2025/2026 Best Graded A+ For Pass

-

12 páginas

Escrito en 2025/2026

Grado A+

EXCELLENTPASS01

Full mark scheme-style answers for Pearson Edexcel International A-Level Biology Unit 1: WBI11 01 – Molecules, Diet, Transport and Health. Covers all core topics from a genuine past paper including: calculating percentage increase in artery wall thickness from a plaque (atheroma) photomicrograph; explaining how atherosclerosis damages heart muscle (hypoxia, myocardial infarction); assessing CVD risk using total cholesterol:HDL ratio and LDL particle size (small vs large LDL – Graph 2 analysi...

-

14 páginas

Escrito en 2025/2026

Grado A+

TestBankDepotX

AQA A-level Biology Paper 1 practice with verified answers on lipids, enzymes, genetics, microscopy, and photosynthesis. June 2025 specimen. A-level biology paper 1, AQA biology exam 2025, biology A-level practice questions, enzyme action induced fit model, lipid digestion micelles, mRNA splicing pre-mRNA, RNA polymerase mechanism, competitive inhibition galactose, prokaryotic cell structures, SEM vs TEM resolution, Spearman rank correlation, non-disjunction mutation, antibiotic resistance sele...

-

48 páginas

Escrito en 2025/2026

Grado A+

Lectgrayson

AQA A-LEVE BIOLOGY Paper 3 Combined Question Paper and Mark Scheme

-

49 páginas

Escrito en 2025/2026

Grado A+

GradeGalaxy

AQA A-LEVEL BIOLOGY Paper 2 Combined Question Paper and Mark Scheme

-

42 páginas

Escrito en 2025/2026

Grado A+

GradeGalaxy

AQA A-LEVEL BIOLOGY Paper 1 Combined Question Paper and Mark Scheme

-

46 páginas

Escrito en 2025/2026

Grado A+

GradeGalaxy

This AQA A Level Biology Paper 1 PDF provides targeted revision support with clear topic summaries, concise explanations, and exam-style questions with answers, helping students strengthen their understanding of core Paper 1 topics and prepare effectively for exams.

-

23 páginas

Escrito en 2025/2026

Grado A+

TestproCenter

This AQA A Level Biology Year 1 PDF is a comprehensive revision resource covering all AS topics with clear, structured notes, concise explanations, and exam-style questions to help students build a strong foundation, reinforce understanding, and confidently prepare for assessments and exams.

-

31 páginas

Escrito en 2025/2026

Grado A+

TestproCenter

This AQA A-Level Biology Paper 2 PDF is a focused revision resource featuring clear topic summaries, detailed explanations, and exam-style questions with answers to help students strengthen their understanding of key Paper 2 content, making it ideal for targeted revision, practice, and achieving high marks in exams.

-

39 páginas

Escrito en 2025/2026

Grado A+

TestproCenter

This comprehensive AQA A-Level Biology PDF provides expertly organized revision notes, detailed topic summaries, and exam-style questions designed to help students master key concepts and achieve top grades, covering all core topics in the AQA specification with clear explanations, structured content, and practice materials ideal for effective revision and exam preparation.

-

8 páginas

Escrito en 2025/2026

Grado A+

TestproCenter