AP Bio Study Question

Hi,

I was looking at the correlations between the AP Bio test and the 8th edition of the campbell textbook (http://media.collegeboard.com/digitalServices/pdf/ap/2012advances/6-Pearson-Campbell-Biology-8ed.pdf). I noticed in class I was tested on quite a few chapters it says are not required, so would it be a good or bad idea to not worry about those chapters that are not required, or is there a chance they can come up on the exam?

Also, I’m taking the bio subject test and was wondering if studying the content from that correlation outline would cover what would likely be on that exam too? I think I’m taking the M test.

Bump! I appreciate any answers!