DIRECTIONS: The following questions have four choices (a), (b), (c) and (d) out of which only one is correct. You have to choose the correct alternative.
Lipids and proteins constituting the cell membrane are synthesized at:
Endoplasmic reticulum
The endoplasmic reticulum bearing ribosomes on their surface is called Rough Endoplasmic Reticulum (RER). They are actively involved in protein synthesis. The Smooth Endoplasmic Reticulum (SER) is the major site for synthesis of lipid. In animal cells, steroidal hormones are synthesized in SER.