GCSE Combined Science Workbook Answers Found - Level 9-1 - Answers

Sep 5, 2026

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AQA GCSE (Grade 9-1) Combined Science workbook answer practice covering both biology, chemistry, and physics topics with worked responses and mark-scheme guidance. Content includes warm-ups, labelled diagram and model answers, and short calculation steps for key concepts such as cells, microscopy, diffusion, chromosomes and mitosis, stem cells, and further science sections listed across multiple themes. Each question is tied to marks and concise student-facing solutions.

LanguageEnglish

CategoryExam

FormatPDF

Pages32

Reading Time1 h 21 min

AccessFree to download

Topic B1—Cell Biology

Page 1—Cells

Page 2—Microscopy

Page 3—More on Microscopy

Page 4—Cell Differentiation and Specialisation

Page 5—Chromosomes and Mitosis

Page 6—Stem Cells

Page 7—Diffusion

Biology Mixed Questions

Chemistry Mixed Question.

Physics Mixed Questions

# ombined Science For AQA(Grade 9-1) xam Practice Answer BookFoundation Level Topic B1—Cell Biology ………………………………………………………………………………………………………………………………3 Topic B2— Organisation …………………………………………………………………………………………………………………………4 Topic B3— Infection and Response …………………………………………………………………………………………………………6 Topic B4— Bioenergetics ……………………………………………………………………………………………………………………………7 Topic B5— Homeostasis and Response …………………………………………………………………………………………………8 Topic B6—Inheritance, Variation and Evolution ………………………………………………………………………………………8 Topic B7— Ecology……………………………………………………………………………………………………………………………………1 Topic C1—Atomic Structure and the Periodic Table ……………………………………………………………………………12 Topic C2— Bonding, Structure and Properties of Matter…………………………………………………………………14 Topic C3— Quantitative Chemistry………………………………………………………………………………………………………15 Topic C4— Chemical Changes………………………………………………………………………………………………………………15 Topic C5—Energy Change …………………………………………………………………………………………………………………16 Topic C6— The Rate and Extent of Chemical Change ………………………………………………………………………16 Topic C7— Organic Chemistry………………………………………………………………………………………………………………18 Topic C8— Chemical Analysis……………………………………………………………………………………………………………………18 Topic C9— Chemistry of the Atmosphere………………………………………………………………………………………………19 Topic C10—Using Resources ………………………………………………………………………………………………………………20 Topic P1— Energy …………………………………………………………………………………………………………………………………20 Topic P2— Electricity…………………………………………………………………………………………………………………………………2 Topic P3— Particle Model of Mater …………………………………………………………………………………………………24 Topic P4— Atomic Structure…………………………………………………………………………………………………………………25 Topic P5— Forces ……………………………………………………………………………………………………………………………………26 Topic P6— Wave ……………………………………………………………………………………………………………………………………27 Topic P7— Magnetism and Electromagnetism ………………………………………………………………………………………29 Biology Mixed Questions …………………………………………………………………………………………………………………………29 Chemistry Mixed Question. …………………………………………………………………………………………………………………………30 Physics Mixed Questions …………………………………………………………………………………………………………………………31 Published by CGP ISBN:978178294 4911 Answers ## Topic B1—Cell Biology ### Page 1—Cells Warm-Up These cells have a nucleus.—Eukaryotic cellsThese are the smallest type of cells.—Prokaryotic cellsThese cells can be bacteria.—Prokaryotic cells ### 1.1 [3marks—1 mark for each correct label] Cell membrane—controls what goes in and out of the cell1.2[1 mark]. Mitochondria—where most aerobic respiration happensII mark]. Nucleus—controls what the cell does/contains geneticmaterial [l mark]. E.g.cytoplasm[1mark],ribosomes [1mark]. ### 1.3 There is no cell wall/vacuole./There are no chloroplasts.1.4[I mark] ### Page 2—Microscopy 24mm [l mark] ### 1.1 24÷0.012=×2000 [1 mark]1.2 ### 2.1 real size=10mm÷1000=0.01 mm[1 mark] ### 2.2 1 mm=1000 μm 0.01 mm×1000=10μm [1 mark.Allow I mark for an incorrect answer to 2.1×1000.] Electron microscopes have a higher magnification and resolution2.3than light microscopes [1 mark]. E.g.more subcellular structures can be seen under an electron2.4microscope./Subcellular structures can be seen with greaterdetail.[I mark] ### Page 3—More on Microscopy To make the specimen easier to see [I mark].1.1 ### 1.2 Remember,you should always start with the objective lens with the lowestmagnification —this makes it easier to get your specimen into view. They bring the sample into focus by moving the stage up1.3and down[l mark]. She should select the×40 or×10 objective lens [1 mark]and1.4use the adjustment knobs to bring the sample back into focus[1 mark]. Any two from:e.g.she should use a pencil with a sharp point.1.5/She should make sure her drawing takes up at least half of thespace available./She should not colour or shade her diagram./She should include a title./She should write down themagnification that it was observed under./She should labeltheimportant features of her drawin

FAQs

What topics are covered in this workbook answers set?

It lists GCSE Combined Science topics including Cell Biology, Organisation, Infection and Response, Bioenergetics, Homeostasis and Response, Inheritance, Variation and Evolution, and Ecology, plus chemistry and physics topics.

How are answers structured in the Cell Biology section?

Answers are provided by page and subtopic, often with warm-up prompts, labelled targets, and calculations, with mark allocation guidance such as “3 marks—1 mark for each correct label”.

Does the book include microscopy and diffusion questions?

Yes. The document includes microscopy pages (including magnification and real size calculations) and a diffusion page with concentration-gradient explanations and membrane-related statements.

Sep 5, 2026

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