1)I would define a “family” being someone who is there for you no matter what. Someone who you can trust with anything and know they won’t betray you. Someone who supports you and doesn’t try to bring you down etc….
2) this question you can just talk about your culture basically. For example I’m Hawaiian so I would probably just describe thinav that is associated with that.
3) Culture is important to me because it makes up my identity….( then I would explain further(
4) My family is really important to me because they are one of the most consistent things in my life. For example friends will come and go, work will come and go etc but they won’t
Sorry I was rushing during these but hope this helps a bit