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golgi appartus

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golgi appartus

Postby perry » Wed Jan 25, 2006 3:05 am

hey guys....

which kind of cell(s) would golgi appartus be found in?
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Postby victor » Wed Jan 25, 2006 11:12 am

Animal cells = Golgi Apparatus
Plant cells = Dictyosomes

both of them are the same...only different naming.
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Postby Poison » Wed Jan 25, 2006 4:46 pm

Maybe the exact answer should be: Eucaryotic cells.
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Postby MrMistery » Wed Jan 25, 2006 7:31 pm

victor wrote:Animal cells = Golgi Apparatus
Plant cells = Dictyosomes

both of them are the same...only different naming.


NO! NO! NO! NO! NO!

The Golgi apparatus is defined as the sum of dictyosomes in a cell. You will rarely find only one dictyosom in a cell, and only then dictyosome=golgi appartus. In general, it is the sum. Oh, and another thing: in a cell, dictyosomes are not separate entitees they are structuraly interconected(same story as with cromosomes)
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Postby victor » Thu Jan 26, 2006 9:17 am

I read it in plant biology and it said that plant have Dictyosomes rather than Golgi apparatus..
it's by Stern
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Postby Dr.Stein » Thu Jan 26, 2006 12:05 pm

Yeah, I am agree with Victor. I read it too. Golgi Apparatus or Golgi complex or Golgi body is the sum of cisternae (flattened sacks or Golgi stacks) and vesicles that bud from them. And it is in animal cell as far as I know.
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Postby th1_rhs13 » Fri Jan 27, 2006 1:20 am

Beat me to it, Stein.
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Postby Dr.Stein » Fri Jan 27, 2006 7:19 am

Pardon?
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Postby MrMistery » Fri Jan 27, 2006 6:44 pm

Golgi apparatus (Golgi complex) Membrane-bounded organelle in eucaryotic cells in which proteins and lipids transferred from the endoplasmic reticulum are modified and sorted. It is the site of synthesis of many cell wall polysaccharides in plants and extracellular matrix glycosaminoglycans in animal cells.

From the Glossary of "Molecular Biology of the cell", by Bruce Alberts and company
Also see:

In this section we focus mainly on the Golgi apparatus (also called the Golgi complex). It is a major site of carbohydrate synthesis, as well as a sorting and dispatching station for the products of the ER. Many of the cell's polysaccharides are made in the Golgi apparatus, including the pectin and hemicellulose of the cell wall in plants and most of the glycosaminoglycans of the extracellular matrix in animals (discussed in Chapter 19). But the Golgi apparatus also lies on the exit route from the ER, and a large proportion of the carbohydrates that it makes are attached as oligosaccharide side chains to the many proteins and lipids that the ER sends to it. A subset of these oligosaccharide groups serve as tags to direct specific proteins into vesicles that then transport them to lysosomes. But most proteins and lipids, once they have acquired their appropriate oligosaccharides in the Golgi apparatus, are recognized in other ways for targeting into the transport vesicles going to other destinations.

(From the same book: http://www.ncbi.nlm.nih.gov/entrez/quer ... .2333#2346 )

Alberts also offers us electron microscope pictures of golgi bodies http://www.ncbi.nlm.nih.gov/books/bv.fc ... iggrp.2347
One of them is made by a romanian, George Palade :)

You were saying, victor?
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Postby th1_rhs13 » Sat Jan 28, 2006 1:31 am

I was implying that your description of the Gogli appratus in Animal cells to be apt, I was about to submit the very same reply or similar to it.
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Postby Dr.Stein » Sat Jan 28, 2006 5:58 am

Ah I see. We have a telepathy eh? ;) Maybe we are twins or maybe we are for each other :lol:
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