Lesson 4.1.1.1

4.1.1.1 Eukaryotes and prokaryotes Quiz: AQA Biology, Unit 1

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson 4.1.1.1, Eukaryotes and prokaryotes: 20 multiple choice questions for the AQA GCSE Biology (8461), Unit 1: Cell biology, written with Revision Ninja.

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The 20 questions

  1. Where is the main genetic material located in a bacterial cell?

    • In a nucleus
    • In a chloroplast
    • In a vacuole
    • In the cytoplasm

  2. What name is given to the small rings of DNA found in bacterial cells?

    • Plasmids
    • Nuclei
    • Chromosomes
    • Ribosomes

  3. Which structure surrounds the cell membrane of a bacterial cell?

    • A cell wall
    • A nuclear envelope
    • A chloroplast membrane
    • A permanent vacuole

  4. Which sub-cellular structure is present in eukaryotic cells but absent in prokaryotic cells?

    • Cell membrane
    • Nucleus
    • Cell wall
    • Cytoplasm

  5. How does the size of a bacterial cell compare to a eukaryotic cell?

    • Slightly larger
    • Much smaller
    • Much larger
    • The same size

  6. Which sub-cellular structure is found in both bacterial cells and plant cells?

    • Cell membrane
    • Chloroplast
    • Nucleus
    • Mitochondrion

  7. A bacterium is 2 µm across. What is its width in nanometres?

    • 200 nm
    • 20 nm
    • 2,000,000 nm
    • 2000 nm

  8. How many micrometres are there in 0.5 mm?

    • 500 µm
    • 5000 µm
    • 5 µm
    • 50 µm

  9. A cell is 5 × 10^-6 m across. What is this in micrometres?

    • 5 µm
    • 50 µm
    • 5000 µm
    • 0.5 µm

  10. Which of these units is the smallest?

    • Micrometre
    • Nanometre
    • Centimetre
    • Millimetre

  11. Express 0.00001 m in micrometres in standard form.

    • 1 × 10^-5 µm
    • 1 × 10^2 µm
    • 1 × 10^1 µm
    • 1 × 10^-1 µm

  12. A bacterium has one circular main DNA loop and three plasmids. How many separate DNA molecules does it contain?

    • 2
    • 5
    • 3
    • 4

  13. A cell has a membrane-bound nucleus and mitochondria. Which type of cell is it?

    • Prokaryotic cell
    • Eukaryotic cell
    • Virus particle
    • Fungal spore

  14. Which structure is shared by bacterial cells and plant cells but not by animal cells?

    • Nucleus
    • Mitochondrion
    • Ribosome
    • Cell wall

  15. A bacterium is 2 µm and a plant cell is 40 µm across. How many times wider is the plant cell?

    • 0.05 times
    • 20 times
    • 200 times
    • 2 times

  16. How many times larger is 1 µm than 1 nm?

    • 1,000,000 times
    • 10,000 times
    • 100 times
    • 1000 times

  17. A cell has a diameter of 0.0002 m. Roughly how many micrometres is this?

    • 0.2 µm
    • 2000 µm
    • 20 µm
    • 200 µm

  18. Which type of cell has its genetic material free in the cytoplasm?

    • Animal cell
    • Plant cell
    • Prokaryotic cell
    • Eukaryotic cell

  19. How many nanometres are there in 1 mm?

    • 1,000 nm
    • 1,000,000,000 nm
    • 1,000,000 µm
    • 1,000,000 nm

  20. Express 4 nm in metres.

    • 4 × 10^-6 m
    • 4 × 10^-3 m
    • 4 × 10^9 m
    • 4 × 10^-9 m

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