The majority of Universities require A Level Biology or PE. Although some accept BTEC's, they're looking for BTEC Extended Diplomas which are equivalent to 3 A Level's. Look at each University and their entry requirements, I do think you will struggle though, and if Physiotherapy is 100% what you want to do then I would either retake A Level's with more appropriate subjects, or take an Access to Higher Education Course after A Level's.
Good Luck!