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Nucleolus by Stella Zhang

Page history last edited by Stella Zhang 4 years, 2 months ago

Nucleolus 

 

 

by Stella Zhang

 

 

 

 

Structural characteristics - 

 

Nucleolus are homogeneous spheres with vacuoles and inclusions. Its submicroscopic structure is mainly divided into two regions, namely the particle region and the filament region. Nucleolus are inside the nucleus without surrounding by a membrane. Nucleolus are machines that produce ribosomes in the nucleus, where transcription of ribosomal RNA (rRNA) is performed in all eukaryotes.

 

 

The function of nucleolus - 

 

Nucleolus is the largest structure of the cell nucleus without carrying information to make proteins in nucleolus’s DNA molecules. However, nucleolus carry information that produces ribosomal RNA. The shape, size, and number of nucleolus vary by species, cell type, and physiological state, but their function is the same. The nucleolus is a region of the nucleus with a low refractive index. This region is a large unwound collection of rDNA in a transcriptional state that is transcribed into ribosomal RNA. In other words, nucleolus is the center of ribosomal RNA synthesis.

 

 

Unique Characteristics-

 

In recent record, nucleolus can be relevant to stress response, body recirculation, and aging. As we mentioned above, the main role for nucleolus is to produce ribosome structures where proteins are obtained. Studying in nucleolus can help human to get in touch with longevity and aging disorders. 

 

 

 

Following is URLs:

 

https://www.encyclopedia.com/science-and-technology/biology-and-genetics/cell-biology/nucleolus

 

https://www.fightaging.org/archives/2018/05/the-many-possible-influences-of-the-nucleolus-in-aging/

 

https://www.frontiersin.org/articles/10.3389/fpls.2018.00132/full

 

https://socratic.org/questions/589f8b6eb72cff1775f492ca

 

 

 

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