What it is
The AAMC Biology Question Packs are official banks of B/B questions. They lean more content-recall and passage-comprehension than the Section Bank, with some questions drawn from an older era of the exam.
That makes them ideal volume practice: real AAMC writing and real AAMC distractors, at a difficulty that builds confidence and reps rather than bruising them.
How a Retaker gets the most from it
Use Q Packs for volume and rhythm. Timed blocks of 20 to 25 questions, followed by honest review of every miss.
Calibrate expectations: many students score noticeably higher on Q Packs than on the Section Bank. Do not let a strong Q Pack run convince you the section is finished, and do not let it replace Section Bank work.
On a retake, pay special attention to the misses that surprise you. On material this approachable, a surprise miss is almost always a trap pattern or a reading slip, which is exactly what your error log is for.
Where it lands in a retake plan
Pillar Prep's plan schedules Q Pack blocks through the middle phases of prep as B/B volume work, sequenced around the Bite-Size series and before the Section Bank takes priority.
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.