Definitions [2]
Define the following term:
Nucleoplasm
Nucleoplasm, also known as nuclear sap or karyoplasm, is the gel-like fluid inside the nucleus of a cell. It surrounds and supports the nucleolus and chromatin, helping to maintain the shape and structure of the nucleus and enabling the movement of materials within it.
Definition: Chromatin Fibres
The nucleoplasm contains a network of dark-coloured fibres called chromatin fibres.
Key Points
Key Points: Nucleus
- The nucleus is the largest, spherical organelle located centrally in the cytoplasm, enclosed by a double-layered membrane with pores.
- It contains nucleoplasm, one or more nucleoli, and a network of chromatin fibres.
- Nucleolus produces ribosomes and assists in protein synthesis by forming and storing RNA.
- Chromatin fibres (made of DNA) condense into chromosomes during cell division and carry hereditary information.
- The nucleus controls all cell functions, and its removal leads to cell death.
