Hi jerry. Those are good subjects indeed if you're planning to be a physio student
Not sure what O.P. means...aussie lingo...? Come on you oz physios help us out.
In the USA almost all, if not all, physio schools have doctorate programmes but there is no difference in pay at the entry level of the profession between someone who has a masters vs someone with the doctorate.
Probably a question for the aussies to answer once again but I would prepare to study for a while after high school.
Chemistry (organic and inorganic) was one of my first year subjects in South Africa. I'm assuming you would have to take it in Australia.
Hope that helps.