Edexcel GCSE Biology

Cell structure

Edexcel GCSE Biology revision on Cell structure. Aligned to the Pearson Edexcel GCSE Biology 1BI0 specification. This bank has 26 practice questions on this topic.

Sample questions (3 of 26)

  1. Question 1

    Which organelle contains the genetic material in an animal cell?

    • A) Mitochondria
    • B) Nucleus
    • C) Ribosome
    • D) Cell membrane
    Show answer

    Answer: Nucleus

    The nucleus stores the cell's DNA. Mitochondria release energy (respiration), ribosomes synthesise protein, the cell membrane controls what enters and leaves.

  2. Question 2

    Name a structure found in plant cells but NOT in animal cells.

    • A) Nucleus
    • B) Ribosome
    • C) Cell wall
    • D) Mitochondria
    Show answer

    Answer: Cell wall

    Three things plant cells have that animal cells don't: cell wall (cellulose, gives support), chloroplasts (chlorophyll for photosynthesis), large permanent vacuole (cell sap).

  3. Question 3

    Bacterial cells differ from animal cells because bacteria lack a...

    • A) Cell wall
    • B) Ribosomes
    • C) True nucleus
    • D) Cell membrane
    Show answer

    Answer: True nucleus

    Prokaryotic (bacteria): DNA loose in cytoplasm + small plasmid loops; no nucleus or membrane-bound organelles. Eukaryotic (animal + plant): DNA in a nucleus; mitochondria, ribosomes, etc. Bacterial DNA is a single circular chromosome.

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