NUCLEOLUS Meaning and
Definition
-
The nucleolus is a distinct region within the nucleus of a eukaryotic cell, serving as a major site for ribosome biogenesis and assembly. It is a small and non-membrane bound structure that appears as a dense, spherical region. The majority of nucleoli are found in the nucleus of each cell, although some cells may contain multiple nucleoli, depending on their functionality and cell type.
The main function of the nucleolus is to synthesize and process ribosomal RNA (rRNA), which are essential components of ribosomes. It acts as the site where ribosomal subunits are formed, processed, and assembled. The nucleolus contains specific regions known as fibrillar centers, dense fibrillar components, and granular components, each of which has functional roles in the rRNA synthesis and ribosome assembly process.
Furthermore, the nucleolus plays a crucial role in cellular homeostasis, as it is involved in cellular stress responses and regulation of the cell cycle. It regulates the synthesis of ribosomal proteins and the quality control of rRNA, ensuring the efficiency of protein synthesis in the cell.
In summary, the nucleolus is an integral component of the nucleus responsible for the production and assembly of ribosomes, fundamental in protein synthesis.
-
Plasmosome; a small mass of stainable (oxyphilic) material within the substance of the nucleus of a cell; it is usually single, but there may be from two to five nucleoli.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
-
A small nucleus; a very minute body contained within a nucleus.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
Top Common Misspellings for NUCLEOLUS *
* The statistics data for these misspellings percentages are collected from over 15,411,110 spell check sessions on www.spellchecker.net from Jan 2010 - Jun 2012.
Other Common Misspellings for NUCLEOLUS
Etymology of NUCLEOLUS
The word "nucleolus" has its etymology rooted in Latin. It is a diminutive form of the Latin word "nucleus", meaning "kernel" or "core". The suffix "-olus" in Latin is a diminutive suffix used to indicate smallness or endearment. Hence, "nucleolus" can be translated as a small or little nucleus.
Similar spelling word for NUCLEOLUS
Infographic
Add the infographic to your website:
