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RER

Definition

noun

(cell biology)

An abbreviation for rough endoplasmic reticulum (ER), a eukaryotic organelle made up of a system of membranous tubes and sacs studded with ribosomes on its surface.


Supplement

Compare: smooth endoplasmic reticulum (SER).
See also: rough endoplasmic reticulum for additional information.


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Glycosaminoglycan

Chondroitin sulfate is a glycosaminoglycan. Would you expect to find this material within the lumen of the RER? Why or why not? I origonally said no, because chondroitin sulfate gives off negative charges and Glycosaminoglycans (GAGs) are the building blocks of cartilage and ...

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by hannahzarzar
Fri May 20, 2011 3:00 am
 
Forum: Cell Biology
Topic: Glycosaminoglycan
Replies: 1
Views: 1898

Calcium ions in the Cell

Ca2+ is mostly stored in the ER (don't know about rER) and the mitochondria.

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by kolean
Sat May 01, 2010 3:06 am
 
Forum: Cell Biology
Topic: Calcium ions in the Cell
Replies: 4
Views: 6900

Calcium ions in the Cell

... what organelle would you expect to see fluoresce when the cells are examined by confocal microscopy? A) Mitochondria B) Lysosome C) Proteasome D) RER E) None of the Above Alot of things jump out at me right away. Firstly, I must mention we've heard nothing of the toxin nor the fluorophore in class, ...

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by someguy456345
Sat Apr 24, 2010 3:05 pm
 
Forum: Cell Biology
Topic: Calcium ions in the Cell
Replies: 4
Views: 6900

Re: Generation of DNA nucleotides

... structure material (scaffolding), for vesicles. Biochemistry page 303 says "The vehicles in which proteins are transported between the RER, the Golgi apparatus, and their final destinations are coated vesicles. These membranous sacs are encased on their outer face by a polyhedral framework ...

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by gs99
Sat Jan 30, 2010 3:32 am
 
Forum: Molecular Biology
Topic: Generation of DNA nucleotides
Replies: 65
Views: 57435

Protein tansfer

Both the nucleus and the mitochondrion have double membranes. Takes longer for the tracer to enter a double membrane? as oppose to the golgi and RER? Or any other reason that the tracer would be slower to enter and be retained in these organelles?

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by kolean
Thu Oct 29, 2009 12:47 am
 
Forum: Cell Biology
Topic: Protein tansfer
Replies: 5
Views: 2542
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