Hi,
there are no special anatomy books geared for Physios. Not sure what you mean, but anatomy is the same - whether you study medicine or Physio. Just remember that it will be very difficult to learn any theory without a practical component. Oh, maybe you could ask your uni for a booklist from previous years.

I think passion is the biggest misconception. I don't think that it has ever ben researched but I believe that most Physio students haven't got a clue about what Physio actually incorporates when they start to study. (including me)

Working hours depend on the hospital. Not sure what it is like in Ireland or the UK at the moment, but commonly it was 08.00 - 4.30pm or so; after hour on-call is rostered, as are weekends and public holidays.

Goo luck with the MCAT.