Combined Science GCSE
Nucleus
What Nucleus means in Combined Science GCSE, as defined for AQA.
Definitions of Nucleus
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Reference: AQA
A membrane-bound organelle found in eukaryotic cells such as animal and plant cells that contains the cell's genetic material and controls the cell's activities.
The part of the atom whose positive charge could be subdivided into a whole number of smaller particles, each having the same amount of positive charge.
The key shared feature of the group, enclosing the genetic material rather than leaving it free in the cytoplasm.
Structure of a eukaryotic cell that contains the cell's genetic material in the form of chromosomes.
It has a radius of about 1 × 10⁻¹⁴ m, which is less than 1/10,000th of the atomic radius.
The centre of an atom, where the mass of the atom is concentrated and which is charged.
Topics that use Nucleus
- Animal and plant cells (AQA GCSE)
- Chromosomes (AQA GCSE)
- Classification of living organisms (AQA GCSE)
- Size and mass of atoms (AQA GCSE)
- The development of the model of the atom (common content with chemistry) (AQA GCSE)
Related terms
- Empty space
- eukaryotic cells
- Aerobic respiration
- alpha particle scattering experiment
- Archaea
- Atomic number
- Atomic structure
- Binomial nomenclature
Using Nucleus in the exam
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