No, they are passages from previous MCATs. Per the AAMC, they are generally made up of "compromised" passages and questions (i.e., passages and questions retired due to a lost exam booklet or similar cause for suspicion of a compromised exam).
AAMC 11 supposedly has mostly passages from 2010 MCAT administrations. It is likely the official study guide's passages are from 2008-2009 (based on the information in them) and that AAMC 10 was from around 2005-2006.