For the first prompt about why the osteopathic profession, I answered it kind of like a timeline of how I ultimately chose osteopathic medicine as my focus. In a nutshell, EMT made me want to provide a higher level of care, and doctors have the highest of care so that was my focus. A good friend of mine passed away a few years ago from a heart condition that should have been caught by his primary care doctor. And so that made me fully grasp the concept of how important quality of care is, not just having the full scope of practice in medicine. I then shadowed a DO who explained to me their beliefs regarding patient care. To me, the DO philosophy - multi-dimensional approach - creates strong doctor-patient relationships, which leads to the best quality of care. .
So for that first prompt, maybe you can try to relate osteopathic medicine to your values and beliefs, connecting it to experiences you've had in your life.
That second prompt, I talked about how I want to be a Navy Doctor. They undergo international relief missions all the time. OMM has proven effective in conditions where medical supplies and technology were limited (Guatemala mission trip in 2004). Also, I talked about how important structure and function is in maintaining homeostasis in the body, and thus its overall health. So having extra weapons in the arsenal to diagnose and treat will only make me a more multi-faceted Navy doctor.
Hope that gives you some kind of idea or spark on what to write....