Question

2 functions of endoplasmic reticulum

Answer 1

The manufacture of proteins and lipids which help in the formation of the cell membrane(membrane biogenesis ).
The SER or the soft endoplasmic reticulum in liver cells of vertebrates help in detoxification of poisons.

Answer 2

It is a series of membrane -bound tubes and chambers within the cell. Its existences remained unknown until the electron microscope bacame available. The endoplasmic reticulum may be studded with a large number ribosomes, giving it a rough appearance. The endoplasmic reticulum sores fat and protein and serves as the cell's transport system