What is the role of the endoplasmic reticulum in protein synthesis?

Question

*changes any proteins which need changing
*transports them to the golgi apparatus
what else does it do???
Apparently I have not included the role of the endoplasmic reticulum...so what is the role???
p.s. theres nothing said about rough or smooth ER just ER on its own.
Thanks :)

Answer 1

Ribosomes are the site of protein synthesis, and can occur freely in the cytoplasm though more commonly on the outer surface of rough endoplasmic reticulum. The endoplasmic reticulum presents a large surface area on which these ribosomes can be situated, therefore allowing protein synthesis to occur on a large scale.

Rough endoplasmic reticulum is particularly abundant in growing cells which demand a high turnover of materials in its growth. Rough ER is responsible for transporting the newly synthesised proteins to the Golgi apparatus.



The smooth endoplasmic reticulum (SER) has no such bound ribosomes and is not involved in protein synthesis. However, the SER is involved in: cholesterol metabolism, membrane synthesis, detoxification, Ca++ storage along with other cellular processes.

Answer 2

Protein Synthesis Endoplasmic Reticulum

Answer 3

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The rough endoplasmic reticulum produces the proteins for export from the cell. Before the proteins are exported they are sent to the golgi apparatus where they are sorted and packaged for export.' Rough Endoplasmic Reticulum: Protein synthesis for export from the cell. Golgi Apparatus: The post translational sorting and packaging of proteins.

Answer 4

The ER consist of 2 types: 1) Rough ER- Protein synthesis 2) Smooth ER- removal of toxins