A&P 1/2 cover almost everything that you learn in Bio 1/2, other than ecology, and evolution/ natural selection. However, A&P is a lot more in depth in everything except DNA, and heredity. So, theoretically each Bio course is similar, just some are more or less in depth in areas than other. Cell bio you will go way more in depth with enzymes, organic macromolecules, and cellular respiration, and a little more micro I think.
All-in-all if you are looking for a course to cover what Bio 2 offers, it's really up to you. I guess a better approach would be to ask what your major is. So, what is your major?