Lesson T1.1.2

T1.1.2 Cell parts and their functions Quiz: KS3 Biology, Unit 1

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson T1.1.2, Cell parts and their functions: 20 multiple choice questions for the KS3 Biology (National Curriculum), Unit 1: Structure and function of living organisms, written with Revision Ninja.

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The 20 questions

  1. Which cell part controls what substances enter and leave the cell?

    • Cytoplasm
    • Cell membrane
    • Nucleus
    • Cell wall

  2. Which cell part is made mainly of cellulose and gives plant cells extra support?

    • The cell membrane
    • The cell wall
    • The nucleus
    • The mitochondrion

  3. Where do most of the chemical reactions of a cell take place?

    • The cell wall
    • The nucleus
    • The cytoplasm
    • The vacuole

  4. Which part of the cell contains the DNA that carries instructions for the cell's activities?

    • The nucleus
    • The cell membrane
    • The vacuole
    • The cytoplasm

  5. What is the main function of the large vacuole in a plant cell?

    • Release energy
    • Produce glucose
    • Store cell sap
    • Control division

  6. Which cell part is the site of aerobic respiration, where energy is released from glucose?

    • The vacuole
    • The mitochondria
    • The cell wall
    • The chloroplasts

  7. Which cell part contains the green pigment chlorophyll?

    • The cell membrane
    • The mitochondrion
    • The nucleus
    • The chloroplast

  8. Which type of cell has a nucleus and membrane, but no cell wall?

    • Plant cell
    • Animal cell
    • Fungal cell
    • Bacterial cell

  9. Which cell part is found in both plant and animal cells?

    • Large vacuole
    • Chloroplast
    • Cell wall
    • Mitochondria

  10. Which term describes a cell membrane that lets some substances pass?

    • Partially permeable
    • Fully permeable
    • Rigid
    • Impermeable

  11. Which structure is found only in plant cells?

    • Ribosome
    • Mitochondria
    • Cytoplasm
    • Chloroplast

  12. Which cell structure is found in plant cells but not in animal cells?

    • Mitochondria
    • Nucleus
    • Cell membrane
    • Chloroplasts

  13. Why do active muscle cells contain many mitochondria?

    • Photosynthesis
    • Cell division
    • Respiration
    • Protein storage

  14. A scientist stains a cell and sees a dark round region near its centre. Which structure is most likely?

    • The chloroplast
    • The nucleus
    • The cell wall
    • The vacuole

  15. A plant root cell is found underground where no light reaches it. Which cell part is it least likely to contain?

    • Mitochondria
    • Chloroplasts
    • A cell membrane
    • A nucleus

  16. Which structure is usually the largest in a mature plant cell and fills most of its centre?

    • The cell membrane
    • The mitochondrion
    • The nucleus
    • The large vacuole

  17. Which plant cell structure helps keep the plant upright without a skeleton?

    • Large vacuole
    • Ribosome
    • Cytoplasm
    • Nucleus

  18. Which organelle carries out photosynthesis in plant cells?

    • Ribosome
    • Nucleus
    • Mitochondrion
    • Chloroplast

  19. What structure is absent in animal cells because they have skeletons?

    • Cytoplasm
    • Membrane
    • Cell wall
    • Nucleus

  20. Why do plant leaf cells contain more chloroplasts than root cells?

    • Mineral uptake
    • Anchorage
    • Water absorption
    • Light absorption

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