Match the following columns and select the correct option :

	Column-I		Column-II
(a)	Smooth endoplasmic reticulum	(i)	Protein synthesis
(b)	Rough endoplasmic reticulum	(ii)	Lipid synthesis
(c)	Golgi complex	(iii)	Glycosylation
(d)	Centriole	(iv)	Spindle formation

	a	b	c	d
1.	i	ii	iii	iv
2.	ii	i	iii	iv
3.	iii	i	ii	iv
4.	iv	ii	i	iii

The smooth endoplasmic reticulum is the major site for the synthesis of lipid. 

RER is frequently observed in the cells actively involved in protein synthesis and secretion.

Golgi apparatus is an important site for the formation of glycoproteins (glycosylation) and glycolipids (glycosydation).

Centriole (centrosome) gives rise to asters which form spindle apparatus.