Briefly discribe nucleus
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Answers
A nucleus is a small spherical mass located somewhat in the centre of the cytoplasm. It has a delicate nuclear membrane which is filled with a relatively dense nucleoplasm. In the nucleoplasm, there are certain thread like structures called chromatin fibres which contain DNA. It is the largest cell organelle found in a cell.
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ADDITIONAL INFORMATION:-
Chief functions of the nucleus:
- Regulates the cell functions.
- Contains chromosomes (bearers of the genes that control hereditary characters)
- If removed, the cell dies, which means they are one of the most important part of a cell.
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The nucleus is a membrane-bound organelle that contains genetic material (DNA) of eukaryotic organisms. As such, it serves to maintain the integrity of the cell by facilitating transcription and replication processes. It's the largest organelle inside the cell taking up about a tenth of the entire cell volume.
The main structures making up the nucleus are the nuclear envelope, a double membrane that encloses the entire organelle and isolates its contents from the cellular cytoplasm; and the nuclear matrix (which includes the nuclear lamina), a network within the nucleus that adds mechanical support.
The nucleus controls and regulates the activities of the cell (e.g., growth and metabolism) and carries the genes, structures that contain the hereditary information.