What is the nucleus?
In GCSE biology, the nucleus is defined as a subcellular structure that is surrounded by a membrane and that contains genetic material (DNA). The DNA within the nucleus controls the activities of the cell.
The nucleus is the site of many cell processes, such as protein synthesis and cell division. Cells that contain a nucleus, e.g. plant cells and animal cells, are known as eukaryotic cells.
Nucleus revision resources to ace your exams
You can find out more about the nucleus in our revision note pages on animal and plant cells. This is normally taught as one of the first topics in GCSE biology along with other components of the cell.
Explore all our biology revision resources at Save My Exams to help improve your grade and boost your confidence in your knowledge and understanding, including past papers and student-friendly mark schemes, flashcards, videos and more.
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