Structure of nucleus: Learn what a nucleus is

Learn what a nucleus is, how it is structured and what functions it performs in eukaryotic cells. Find out the difference between nucleus and nucleoid, and test your knowledge with MCQs. The structure of a nucleus encompasses the nuclear membrane, nucleoplasm, chromosomes, and nucleolus. The nuclear membrane is a double-layered structure that encloses the contents of the nucleus. The outer layer of the membrane is connected to the endoplasmic reticulum. Learn about the structure and functions of the nucleus, a cell organelle that carries the genetic material of a cell. The nucleus consists of a nuclear envelope, nucleoplasm, nuclear matrix, chromatin, and nucleolus. What is a Nucleus The nucleus is a double membrane-bound organelle located centrally only in a eukaryotic cell, enclosing the DNA, the genetic material. It is the most important and defining feature of all higher organisms, including plant and animal cells, whose main function is to control and coordinate the functioning of the entire cell.