What knowledge I have regarding questions such as this one is based upon my conversations with several pre-medical advisors...
All of the pre-med advisors who I have spoken to have emphasised to me the
importance of NOT taking any pre-medical courses (be it bio or o-chem, whatever) at a community college for the very reason that you mentioned-that it hurts your chances as such courses aren't necessarily comparable, difficulty-wise, as those offered at private or state schools . If you can find a nearby state institution where you can take bio, I would recommend that instead.
Best of luck to you.