Cultural structures are recurring, patterned symbols, ideas and values . They are shared by many in a society and are at least partly internalized. It is these ideas and values that help shape patterns of behavior and relationships. So cultural structures and social structures can be self-reinforcing. This means that one supports the existence of the other.
Language is an example of a cultural structure.
Language reflects gender roles and stereotypes. The differences you see in the lives many women and men live are related to patterned symbols, ideas and values of what it means to be male and female. They are not tied to biology. Probably not all of you, but most of you, can call up stereotypical images of what it means to be a boy or girl. If so, there isn't anything wrong with thinking this way.