Lesson 4.1.1.1

4.1.1.1 Eukaryotes and prokaryotes Quiz: AQA Combined Science, 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 Combined Science (8464), Unit 1: Cell biology, written with Revision Ninja.

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The 20 questions

  1. Where is the genetic material found in a prokaryotic cell?

    • Nucleus
    • Plasmid
    • Cell wall
    • Cytoplasm

  2. Which structure is present in both plant and bacterial cells?

    • Chloroplast
    • Nucleus
    • Permanent vacuole
    • Cell membrane

  3. Which prefix means one thousandth?

    • nano
    • micro
    • centi
    • milli

  4. Which cell type is much smaller than plant and animal cells?

    • Animal cell
    • Eukaryotic cell
    • Bacterial cell
    • Plant cell

  5. What are the small rings of DNA found in some bacteria called?

    • Ribosomes
    • Nucleoids
    • Mitochondria
    • Plasmids

  6. Which feature is found in eukaryotic cells but not in prokaryotic cells?

    • Ribosome
    • Nucleus
    • Cytoplasm
    • Cell membrane

  7. What surrounds the cell membrane of a bacterial cell?

    • Cell wall
    • Slime capsule
    • Cellulose layer
    • Nuclear membrane

  8. How many small DNA rings called plasmids may bacterial cells contain?

    • Exactly one hundred
    • Exactly two
    • None ever
    • One or more

  9. A bacterium is 2 µm long. Written in metres in standard form, its length is:

    • 2 × 10^-6 m
    • 2 × 10^-9 m
    • 2 × 10^6 m
    • 2 × 10^-3 m

  10. A cell is 0.05 mm across. What is this in micrometres?

    • 50 µm
    • 5 µm
    • 500 µm
    • 0.5 µm

  11. A eukaryotic cell is 20 µm across and a bacterium is 0.5 µm across. How many times wider is the eukaryotic cell?

    • 4 times
    • 400 times
    • 40 times
    • 20 times

  12. How many nanometres are there in one micrometre?

    • 100 nm
    • 1 000 000 nm
    • 10 000 nm
    • 1000 nm

  13. A structure measures 0.0003 m. In standard form this is:

    • 3 × 10^-3 m
    • 3 × 10^-5 m
    • 3 × 10^4 m
    • 3 × 10^-4 m

  14. A cell has DNA in a nucleus, plus mitochondria and ribosomes, but no cell wall. It is most likely:

    • A plant cell
    • A plasmid
    • A bacterial cell
    • An animal cell

  15. Where does the single DNA loop of a bacterium lie?

    • Cytoplasm
    • Mitochondria
    • Vacuole
    • Nucleus

  16. A bacterium is 1 µm across. How many bacteria placed side by side fit across 1 mm?

    • 10 000
    • 100
    • 1000
    • 1 000 000

  17. What encloses the genetic material in a eukaryotic cell?

    • Cell wall
    • Nucleus
    • Plasmid
    • Cytoplasm

  18. Why is a bacterial cell classified as prokaryotic?

    • No nucleus
    • No ribosomes
    • No cytoplasm
    • No cell wall

  19. A cell is 50 µm across. What fraction of 1 mm is its width?

    • 1/200
    • 1/20
    • 1/50
    • 1/2

  20. A bacterium is 0.8 µm across. What is this in metres, in standard form?

    • 8 × 10^-5 m
    • 8 × 10^-8 m
    • 8 × 10^-6 m
    • 8 × 10^-7 m

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