Q.

Select the correct matching in the following pairs.             [2015]

1 Rough ER – Synthesis of glycogen  
2 Rough ER – Oxidation of fatty acids  
3 Smooth ER – Oxidation of phospholipids  
4 Smooth ER – Synthesis of lipids  

Ans.

(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.