From my experience, I would say that the MCAT neither utilizes what you call "trick" questions, nor do they give questions with straightforward answers. They love giving multiple "true" answers. That is, answers that are technically true but want you to choose the "most" correct answer, or the answer most applicable to that particular question. You must know the content, but in the context of the particular passage (or, in the case of discretes, the question) you are reading. Please let me know if this doesn't make sense.
Having said all that, if you do plenty of practice questions and the FL's, you will be very familiar with the MCAT style. Like anything in life, if you've prepared to the best of your abilities, you will get the score you want.