Hello philiplp.school! 

Well, it's your choice on whichever biology you'd like to study at University requirement and your level of understanding.

In my opinion, it isn't necessary to revise the entire biology library but instead the High School biology and College Biology which are often recommended in some cases. it depends on your level of understanding in regards to the entire biology course and the medical field standards you are to partake in at your specific College. 

Biology is pretty much a critical course, and if your level of understanding is quite low, then you must revise the entire biology course and take the course challenges.

Studying AP Biology would indicate that you have the skills and knowledge required to handle difficult classes as a medical student. Perhaps research on pre-med student classes for biology, and additional information about your medical field and biology requirements. 

-Hope you find this helpful!

~Galaxy.