Question

What is endoplasmic reticulum?

Answer 1

It is a cell organelle. it is of two types:-
Rough ER- it contains ribosomes on its outer surface.....which help in the synthesis of protein.
Smooth ER- it is free of ribosomes. it helps in the synthesis of fat or lipid.

Answer 2

endoplasmic reticulum is a network of canals and tubes running throughout the cytoplasm.it transports substances from one part of the cell to another.

Answer 3

endoplasmic reticulum surrounds the nucleus and is also found free floating in the cytoplasm, in respect the the RE and the SE

Answer 4

its functions are:
rough ER - protein sunthesis (rough because of the presence of ribosomes)
smooth ER - membrane synthesis and trafficking