Stem Cell Research and Regenerative Medicine

Cell Nucleus Journals

The nucleus may be a highly specialized organelle that is the knowledge processing and office of the cell. This organelle has two major functions: it stores the cell's hereditary material, or DNA, and it coordinates the cell's activities, which include growth, intermediary metabolism, protein synthesis, and reproduction only the cells of advanced organisms, referred to as eukaryotes, have a nucleus. Generally there's just one nucleus per cell, but there are exceptions, like the cells of slime molds and therefore the Siphonales group of algae. Simpler one-celled organisms (prokaryotes), just like the bacteria and cyanobacteria, do not have a nucleus. In these organisms, all of the cell's information and administrative functions are dispersed throughout the cytoplasm. The spherical nucleus typically occupies about 10 percent of a eukaryotic cell's volume, making it one among the cell's most prominent features. A double-layered membrane, the nuclear envelope, separates the contents of the nucleus from the cellular cytoplasm. The envelope is riddled with holes called nuclear pores that allow specific types and sizes of molecules to pass back and forth between the nucleus and therefore the cytoplasm. it's also attached to a network of tubules and sacs, called the endoplasmic reticulum, where protein synthesis occurs, and is typically studded with ribosomes .The semifluid matrix found inside the nucleus is named nucleoplasm.    

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