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The RER is a cell's protein making machinery for proteins which are destined to be secreted from the cell (e.g insulin, growth hormone, cell signaling molecules, etc.) or for those which are going to be stored inside a cellular vesicle (e.g. digestive proteins inside lysozomes). The RER ribosomes assembl the proteins and then the proteins are shuttled to the Golgi apparatus where they are packaged and labeled for secretion.

Ribosomes free floating in the cytoplasm assemble proteins that the cell uses internally for it's own metabolic or structural needs.

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13y ago

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Related Questions

What is the main difference of smooth and rough ER?

Rough Endoplasmic Reticulum is with ribosomes attached and helps in protein synthesisSmooth Endoplasmic Reticulum no ribosomes


What are attached to ribosomes?

Fixed ribosomes are attached to the endoplasmic reticulum. The ribosomes are organelles that are suspended in the cytosol which is bound to the endoplasmic reticulum.


What organelle has ribosomes attached to it's surface?

Ribosomes can be attached to endoplasmic reticulum, and when ribosomes are attached, it is called rough endoplasmic reticulum.


What do attached ribosomes do?

Ribosomes attach to the Endoplasmic Reticulum forming Rough Endoplasmic Reticulum.


What organelle is attached to rough endoplasmic reticulum?

Ribosomes are the organelles attached to the rough endoplasmic reticulum. Ribosomes play a key role in protein synthesis, and their presence on the rough endoplasmic reticulum provides a platform for translation and processing of newly synthesized proteins.


What is the difference between a rough ER and a soft?

rough Endoplasmic Reticulum is with ribosomes attached .helps in protein synthesis Smooth Endoplasmic Reticulum no ribosomes


Endoplasmic reticulum with ribosomes attached to it is called?

Rough endoplasmic reticulum.


What does the endoplasmic reticulum have attached to it?

Ribosomes.


What small structures are found attached to the rough endoplasmic reticulum?

Ribosomes are the small structures found attached to the rough endoplasmic reticulum. These ribosomes are responsible for protein synthesis within the cell and give the rough endoplasmic reticulum its characteristic rough appearance.


Are ribosomes always found in the endoplasmic reticulum?

No, ribosomes are not always found in the endoplasmic reticulum. Ribosomes can be free-floating in the cytoplasm or attached to the endoplasmic reticulum. Ribosomes attached to the endoplasmic reticulum are called rough endoplasmic reticulum, while ribosomes in the cytoplasm are called free ribosomes.


What is sprinkled with ribosomes?

The Rough Endoplasmic Reticulum, and The Cytoplasm


What does rough endoplasmic reticulum have embedded on its surface?

Ribosomes are embedded on the surface of rough endoplasmic reticulum. These ribosomes are responsible for protein synthesis, and their presence gives the rough endoplasmic reticulum its characteristic bumpy appearance.