Practise enzyme and circuit calculations, interpret experiments, distinguish behavioral mechanisms, and evaluate passage arguments across all four MCAT sections. These are independent learning materials, not official exam questions or a pass prediction.

Read the MCAT Preparation Guide: Mechanisms, Evidence, and Passage Reasoning study guide and official exam sources
Exam outline and official sources

Association of American Medical Colleges (AAMC) · Current MCAT framework launched April 2015. The currently linked 111-page What's on the MCAT Exam? content outline bears copyright 2020; no separate effective revision date was identified. The opened MCAT Essentials for Testing Year 2027 PDF states effective September 2026, while its official webpage states effective October 2026. These handbook dates concern testing policies, not a content-blueprint revision. Requested reference date: 2026-10-08.

This original 20-question sample covers selected topics across the outline. It does not reproduce official exam questions or cover every tested topic.

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Medical College Admission Test (MCAT)

Start with 20 free questions, then review the explanations and any topics you missed.

20 free questions0 premium in this bankIndependent practice materials
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An enzyme follows Michaelis–Menten kinetics. Without inhibitor, its Vmax is 120 units and Km is 4 mM. With inhibitor, Vmax is 120 units and apparent Km is 12 mM. Which mechanism best fits these results?

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