Question

Egg and sperm movement both require cilia-like structures. What do these structures do in each case, and what are these structures called?

Answer 1

The movement sperm is done by whipping its flagellum. Flagella are complex structures. The major motor portion of the flagellum is called the axoneme. It is majorly composed of microtubules.

Egg cells are usually non-motile, however in some cases of reproduction, there is no clear difference between the male and female gametes. The larger gamete is usually reffered to as female. In such cases, flagella are the main structures that are required for the motility of gametes.