Which type of endoplasmic reticulum extends from the nucleus to the cell membrane and holds the ribosomes in place?

Rough endoplasmic  reticulum extends from the nucleus to the cell membrane and holds ribosome at its surface.

Explanation:

Endoplasmic  reticulum is of 2 types rough endoplasmic reticulum and smooth endoplasmic reticulum.

  Rough endoplasmic  reticulum is named so because it contain ribosome on its surface as a result rough endoplasmic reticulum play a significant role during translation or protein biosynthesis.

 Rough endoplasmic  reticulum extends from the nucleus that"s why most of the proteins of rough endoplasmic  reticulum is accessed by the nucleus and if any proteins of RER or rough endoplasmic  reticulum is not properly folded or misfolded then specific signals are send from nucleus for the correct folding of proteins of RER.

acceleration= v2-v1/t so 8m/s-3m/s / 3s =to 8/3 or

2.67 m/s^2

hope i

-lavira: )