Question

How is the smooth endoplasmic reticulum made?

Answer 1

The smooth endoplasmic reticulums are simple cytoskeleton.

Explanation:

The endoplasmic reticulums form a cytoskeleton. They are of two types- smooth endoplasmic reticulum or SER and rough endoplasmic reticulum or RER.
The RERs have ribosomes on their surface, whie SERs lack ribosomes.
The endoplasmic reticulums are simple extension of cell membrane. The chemical nature of reticulums is similar to biomembrane. Thank you