So the microtubules are responsible for creating the metonic spindle that is formed during cell division. Now, another function of microtubule is to basically transport things within the cell so we can imagine the microtubules to be the highway system within our cell so we can move things from one location to a different location within the cell as a result of these network of highways our microtubules. Now, another important function of microtubules is the formation of specialized structures that help the cell move and these structures include our flagella as well as cilia. Now, the flagella inside Eukaryotes is made of this tubulin. But inside Prokaryotes, our flagella is not made from tubulin, so it's not made from microtubules. It's made from a different type of protein known as flagellin.