Select the correct matching in the following pairs. [2015]
(4)
Smooth endoplasmic reticulum (SER) is a system of smooth membranes (i.e., membranes not having ribosomes) within the cytoplasm of plant and animal cells. It forms a link between the cell and nuclear membranes. It is the site of important metabolic reactions, including phospholipids and fatty acid synthesis. In animal cells, lipid-like steroidal hormones are also synthesised.