Skip to content
    Biology GCSE

    Nucleus

    What Nucleus means in Biology GCSE, as defined for AQA, Pearson Edexcel.

    Definitions of Nucleus

    Exam boards and our study guides word this term in slightly different ways. Learn the version your board uses.

    Check what you remember

    Read the wording for your board, then hide it and explain Nucleus in your own words. Rough notes are fine. This is a self-check, with no mark or grade.

    Reference: AQA

    A structure bounded by its own membrane that holds the genetic material, DNA, separated from the cytoplasm.
    AQA · Eukaryotes and prokaryotes (study guide)
    Contains DNA and controls the cell's activities; present in animal and plant cells but absent in bacteria.
    Pearson Edexcel · Topic 1 – Key concepts in biology (study guide)
    A structure that contains DNA and therefore acts as the control centre of the cell.
    AQA · DNA and the genome (study guide)
    Contains DNA and controls the cell's activities, including protein synthesis.
    AQA · Animal and plant cells (study guide)
    The cell's control room, which contains chromosomes made of DNA molecules.
    AQA · Chromosomes (study guide)
    Contains DNA and controls the cell's activities.
    AQA · Animal and plant cells (study guide)

    Topics that use Nucleus

    Related terms

    Using Nucleus in the exam

    Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.

    Practise Biology questions

    Create a free account to answer exam-style questions on this topic and get feedback on your answers.

    Start free

    A week of Premium from your first lesson · Then the free plan continues · No card, no charge

    All Biology GCSE terms