What are they?
Centrioles are tubelike structures that aid in cell division. They generally are found close to the nucleus and are made up of nine tube-like structures that each have three tubules.
What do they do?
There are two main functions of centrioles that we will focus on.
1. Cell division
The main function of the centriole is to help with cell division in animal cells. The centrioles help in the formation of the spindle fibers that separate the chromosomes during cell division (mitosis).
The second function of centrioles that we will focus on is celiogenesis. Celiogenesis is simply the formation of cilia and flagella on the surface of cells. Cilia and flagella help the cell move.