I can't speak for UoP, but I don't think that's something I would put a lot of stock in - when you fill out the AADSAS application, it churns out an overall GPA, a BCP GPA, and a science GPA (BCP + math/other science). Those numbers are what seem to get the most attention. If your GPAs are bad and you get a really good DAT, they might look for an upward trend. They definitely get those (freshman) grades though. Think about it, they get like 4000 applications at each school, its not like they are going over each one in tremendous detail. If you do have an upward trend in your GPA, you might want to reference that in your personal statement so it gets some attention.