What happens to proteins with in the endoplasmic reticulum?

Answer 1

Newly made proteins are either released into the cytoplasm or transported into the rough endoplasmic reticulum. Those released into the cytoplasm may make their way into the nucleus if they have the nuclear localisation signal. Proteins that contain an N terminal signal sequence in their amino acid sequence will be transported into the rough endoplasmic reticulum or the RER membrane, where they will undergo further processing (mainly glycosylation) before vesicular transport to an organelle or the cell membrane.

Answer 2

they are modified in the the lumen (area in the rough endoplasmic reticulum). this allows the protein to be folded into its native shape before being shipped of to the Golgi apparatus for further modification.

Answer 3

Proteins are synthesized in ribosomes.Rough ER holds many ribosomes.

Answer 4

They travel into the Golgi apparatus (bodies) where they are then packaged into small vesicles which then go out side the cell.

Answer 5

In the cytoplasm of the cell, on small organelles called ribosomes.