What is endoplasmic reticulum ?

Which of these is not related to endoplasmic reticulum ?

Which of these is not related to endoplasmic reticulum?

Which of these is not related to endoplasmic reticulum?

The difference between rough endoplasmic reticulum and smooth endoplasmic reticulum is that rough endoplasmic reticulum

What are the structural elements of endoplasmic reticulum ? Explain in detail.

Differentiate between rough and smooth endoplasmic reticulum. How is endoplasmic reticulum important for membrane biogenesis?