Depend on the school you want to go, there may/may not be prerequisite classes required. E.g. Some high-ranking schools, like UW will need classes taken before you apply to the nursing school. Other schools, like my school for BSN, will have you take the classes at the 1st year. We took anatomy, Microbiology, physiology, so just take it as a reference. Hope my answer helps! And good luck with studying!