Golgi bodies?

Question

What is a Golgi body?

Answer 1

http://www.stemnet.nf.ca/~dpower/cell/go...

Answer 2

The Golgi apparatus (also called the Golgi body, Golgi complex, or dictyosome) is an organelle found in most eukaryotic cells. It was identified in 1898 by the Italian physician Camillo Golgi and was named after him. The primary function of the Golgi apparatus is to process and package the macromolecules such as proteins and lipids that are synthesized by the cell. It is particularly important in the processing of proteins for secretion. The Golgi apparatus forms a part of the endomembrane system of eukaryotic cells.

Answer 3

The Golgi apparatus (also called the Golgi body, Golgi complex, or dictyosome) is an organelle found in most eukaryotic cells. It was identified in 1898 by the Italian physician Camillo Golgi and was named after him. The primary function of the Golgi apparatus is to process and package the macromolecules such as proteins and lipids that are synthesized by the cell. It is particularly important in the processing of proteins for secretion. The Golgi apparatus forms a part of the endomembrane system of eukaryotic cells.

Structure

The Golgi is composed of membrane-bound stacks known as cisternae. Between five and eight are usually present; however, as many as sixty have been observed.

The cisternae stack has five functional regions: the cis-Golgi network, cis-Golgi, medial-Golgi, trans-Golgi, and trans-Golgi network. Vesicles from the endoplasmic reticulum (via the vesicular-tubular cluster) fuse with the cis-Golgi network and subsequently progress through the stack to the trans-Golgi network, where they are packaged and sent to the required destination. Each region contains different enzymes which selectively modify the contents depending on where they are destined to reside.

The trans face of the trans-Golgi network is the face from which vesicles leave the Golgi. These vesicles then proceed to later compartments such as the cell surface (or plasma membrane), secretory vesicles or late endosomes.

A cisterna (plural cisternae) comprises a flattened membrane disk that makes up the Golgi apparatus. A typical Golgi has anywhere from 3 to 7 cisternae stacked upon each other like a stack of dinner plates, but there are usually around 6. The cisternae carry Golgi enzymes to help or to modify cargo proteins traveling through them destined for other parts of the cell.

The cisternae also carry structural proteins important for its maintenance as a flattened membrane and its stacking upon each other.

The earliest cisternae are called the cis-cisternae, followed by the medial cisternae, then the trans-cisternae (as they move away from the endoplasmic reticulum).

The formation of new cisternae is often called the cis-Golgi network and at the end of the Golgi where transport to other parts of the cell occurs is called the trans-Golgi network. Both are thought to be specialized cisternae leading in and out of the Golgi apparatus.

Cisternae may also refer to flattened regions of the rough endoplasmic reticulum.

for more infos..refer to this site:

http://en.wikipedia.org/wiki/Golgi_body

Answer 4

The Golgi body, or the Golgi apparatus is a set of membranes found in the eukaryotic cell.

It is used as a junction in protein transport.

For example, after being synthesized membrane proteins move through the Golgi apparatus to the cell membrane.