Which of the following process takes place in endoplasmic reticulum ?
Generally, the ribosomes are the dense and spherical structures that occur freely in the cytosol and also remain attached to the rough endoplasmic reticulum (RER).
Smooth endoplasmic reticulum plays an important role in the biosynthesis of glycolipids, phospholipids and cholesterol.
These lipids are used in the formation of plasma or cell membranes and various steroid hormones.
The enzymes present in the smooth ER synthesize fats (lipids), steroids and cholesterol.
The organelle plays a major role in synthesizing, processing, and transportation of protein and lipids.
The smooth endoplasmic reticulum (SER) showing the absence of ribosomes forms the lipid molecules of the plasma membrane.
The rough endoplasmic reticulum shows the presence of ribosomes which are responsible for secreting proteins required for the formation of plasma membranes.
Hence, the correct answer is option (d).