What it is
The AAMC Section Bank is official practice material for the science sections, and the B/B bank covers the B/B section specifically. The questions skew toward the harder, more reasoning-heavy end of what the real exam asks, which is exactly why they are so valuable.
Because the Section Bank is written by the AAMC itself, its distractors behave like real test-day distractors. That makes it the single best resource for studying how you get questions wrong, not just whether you get them right.
How a Retaker gets the most from it
Work in timed blocks of about 25 questions rather than marathon sittings. The Section Bank rewards focused attention, and fatigue hides the reasoning errors you are trying to find.
Expect a lower percentage correct than on Q Packs or content-based practice. That is normal and by design. Judge yourself on the quality of your review, not the raw score.
Do it twice if your timeline allows. A first pass mid-prep to learn from, and a second pass later to measure how your reasoning changed. For a Retaker who saw this material on a previous cycle, the second pass discipline applies from day one: slow, written review of every miss.
Where it lands in a retake plan
Pillar Prep's plan breaks the Section Bank into 25-question blocks and schedules them through the Building and Intensive phases, weighted toward the sections where you need the most work.
The blocks are sequenced alongside your other B/B work, so the bank lands when you have the foundations to learn from it rather than be discouraged by it.
Pillar Prep's study plans are built around official AAMC material because it is the gold standard for MCAT practice. If you want a personalized schedule that places every AAMC resource for you, start with the free Retaker Calculator or explore The Retaker Course. You can also see how a plan is structured on our 3-month retake schedule guide.