Well in my case, they just asked me silly stuff like why do I want to do medicine or what motivated me and the virtue of team work in medicine. That being said, do give them good, intellectual answers. I don't think they ask you any questions relating to do with general knowledge in the field of medicine or anything. The interview is just a formality. The main part is the test. Congratulations (or rather as the czechs say: gratuluju!)

Just be humble to the profs./dean. You don't need to go overboard with respect either as they will notice that.