MCAT Structure (2026)
The MCAT (Medical College Admission Test) is the standardised admissions exam for US and Canadian medical schools, administered by AAMC. It is one of the longest standardised tests in the world at 7.5+ hours.
Chemical & Physical Foundations
59 questions — general chemistry, organic chemistry, physics, biochemistry
CARS (Critical Analysis)
53 questions — humanities and social science passages, no science knowledge required
Biological & Biochemical Foundations
59 questions — biology, biochemistry, organic chemistry
Psychological, Social & Biological Foundations
59 questions — psychology, sociology, biology
Highest-Yield Topics
- Biochemistry: Amino acid structures, enzyme kinetics, metabolism (glycolysis, Krebs, oxidative phosphorylation) — appears in both Section 1 and 3
- Molecular Biology: DNA replication, transcription, translation, gene regulation
- Organ Systems: Cardiovascular, renal, respiratory, neuroendocrine — heavily tested in passages
- Psychology/Sociology: Theories (Freud, Piaget, Kohlberg), social influence, health disparities
- Physics: Fluids, circuits, optics, thermodynamics — usually appear as graph-based passage questions
CARS: The Section That Trips Most Pre-Meds
CARS (Critical Analysis and Reasoning Skills) is the hardest section for science-oriented students because there is no content to memorise — it tests pure reasoning from the passage alone.
- Read for the author's argument, not for facts
- Never bring outside knowledge — every correct answer is supported by the passage text
- Practice 6–9 passages per day for 8+ weeks to build reading speed and argument identification
- Jack Westin daily passages are the gold standard for CARS practice
Best MCAT Resources 2026
- AAMC Full-Lengths (FL 1–4): The most predictive practice tests — do all 4 in the final 6 weeks
- Kaplan / Princeton Review content books: For conceptual review of all four sections
- Anki (pre-made Pepper/Zanki decks): Spaced repetition for amino acids, biochemical pathways, psychology terms
- Blueprint / UWorld Qbanks: Passage-based practice at AAMC difficulty
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