Centrosomes are made of a pair of centrioles and other proteins. The centrosomes are important for cell division and produce microtubules that separate DNA into two new, identical cells. Cilia and flagella also use centrioles, but for the purpose of cell movement, and to move liquids around cells.entrioles are also used in the cell structures cilia and flagella. Cilia are lots of small projections on cells, like little hairs that whip back and forth to move the cell or move material over or around the cell. Cells in the lungs, for example, use cilia to move mucus out of the lungs.