the best thing about the 1001 Biology book from EK is that it keeps you on your toes (like the other poster said). It makes u see how clues are hidden in the passage to answer questions successfully. Also...the information/answer explanations, are more like a textbook by themselves, as they review stuff that's been seen on previous MCATS, so its like part II of EK Bio book. I went through every single passage in there and it REALLYYY helped me out cuz it made the BIO section a breeze...not because I understood every single detail in the actual MCAT passages I took in bio, but because I was used to seenig how to find the correct answer, or even a few questions which were almost direct quotations from the book.
If you can put ur ego aside and just do the questions...or better yet, just read the passages, see how you would normally answer it w/o lookin at the answer explanations..then go back thru and see how they derived the correct answer..thats the best prep ever!!! U can do this for a few passages and then just read the passage and look directly at the answer explanations for the remainder of the passages...and it really helps, i'm tellin u!