What Are the Major Functions and Structures of a Cell Nucleus?

Published on 29-Jun-2022

Structure of Nucleus

 Chemically they are composed of nucleic acid, RNA, and protein. Physically, they are composed of the following components:

  • Nuclear membrane: The nuclear membrane is the double-layered transparent membrane that forms the nucleus's outer covering. The outer membrane is permeable, but the inner membrane is not.
  • Nucleoplasm:  It is a clear and dense fluid surrounded by a nuclear membrane. It contains a nucleolus and chromosomes.
  • Nucleolus: The nucleolus is the denser, smaller, rounder body found in the nucleus.
  • Chromosome: A chromosome contains several genes, and these genes are responsible for expressing the characteristics of various species.

Functions of the different parts of a Nucleus

  • The primary function of the nuclear membrane is to keep the nucleoplasm, chromosomes, and nucleus separate from the cytoplasm. This membrane is also used to transport internal materials and cytoplasm.
  • Nucleoplasm stores chromosomes and performs various organic functions.
  • Nucleolus synthesizes and stores various types of RNA and protein.
  • The chromosome contains and transmits the organism's hereditary properties.


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