Candidate Instructions.......................................................................................................8
Test-Day Guidelines............................................................................................................8
Timing and Scoring Overview.............................................................................................9
Section Score Range.........................................................................................................10
Exam Structure.................................................................................................................11
Section Timing..................................................................................................................11
Answer Sheet Instructions................................................................................................12
Score Conversion Guide...................................................................................................12
Section 1.1 – General Chemistry.......................................................................................14
Atomic Structure..................................................................................................................14
Periodic Trends.....................................................................................................................15
Chemical Bonding.................................................................................................................16
Stoichiometry.......................................................................................................................17
Acids and Bases....................................................................................................................18
Electrochemistry...................................................................................................................19
Section 1.2 – Organic Chemistry........................................................................................21
Functional Groups................................................................................................................21
Nomenclature.......................................................................................................................23
Reaction Mechanisms..........................................................................................................24
Alcohols, Aldehydes, Ketones, and Carboxylic Acids............................................................25
Spectroscopy........................................................................................................................27
Section 1.3 – Physics.........................................................................................................29
Kinematics............................................................................................................................29
Forces and Newton's Laws...................................................................................................30
Work and Energy..................................................................................................................31
Fluids....................................................................................................................................32
Thermodynamics..................................................................................................................33
Electrostatics........................................................................................................................34
Circuits..................................................................................................................................34
Optics....................................................................................................................................35
,Section 1.4 – Biochemistry Foundations............................................................................37
Amino Acids..........................................................................................................................37
Proteins.................................................................................................................................38
Enzymes................................................................................................................................40
Carbohydrates......................................................................................................................41
Lipids.....................................................................................................................................42
Metabolism..........................................................................................................................43
PASSAGE 1 — Enzyme Activity (Biochemistry).....................................................................45
PASSAGE 2 — Newtonian Mechanics (Physics)....................................................................46
PASSAGE 3 — DNA & Gene Expression (Biology).................................................................47
PASSAGE 4 — Psychology (Memory & Learning).................................................................47
1.6 Discrete Questions......................................................................................................50
BIOLOGY & BIOCHEMISTRY..................................................................................................50
CHEMISTRY...........................................................................................................................50
PHYSICS.................................................................................................................................51
PSYCHOLOGY & SOCIOLOGY.................................................................................................52
SECTION 2 — CRITICAL ANALYSIS AND REASONING SKILLS (CARS).....................................53
2.1 HUMANITIES PASSAGE 1 — Art & Perception................................................................53
2.2 HUMANITIES PASSAGE 2 — Language Evolution............................................................54
2.3 ETHICS PASSAGE — Medical Decision Making...............................................................54
2.4 PHILOSOPHY PASSAGE — Knowledge & Reality.............................................................55
2.5 SOCIAL SCIENCES PASSAGE — Social Identity................................................................56
2.6 LITERATURE PASSAGE — Narrative Interpretation.........................................................57
2.7 HISTORICAL ANALYSIS PASSAGE — Industrial Change....................................................57
2.8 MIXED CARS QUESTIONS................................................................................................58
Section 3 — Biological & Biochemical Foundations of Living Systems................................60
3.1 Cell Biology (Cell Structure, Organelles, Cell Cycle, Transport)......................................60
PASSAGE 1 — Cell Structure & Organelles...........................................................................60
PASSAGE 2 — Cell Cycle Regulation.....................................................................................61
PASSAGE 3 — Cellular Transport..........................................................................................61
PASSAGE 4 — Organelle Function........................................................................................62
PASSAGE 5 — Membrane Structure.....................................................................................63
,DISCRETE QUESTIONS.......................................................................................................64
Cell Biology Fundamentals...................................................................................................64
Cell Cycle & Division.............................................................................................................64
Transport Mechanisms.........................................................................................................65
Section 3 — Biological & Biochemical Foundations...........................................................67
Molecular Biology.................................................................................................................67
PASSAGE 1 — DNA Replication Fidelity................................................................................67
PASSAGE 2 — Transcription & RNA Processing....................................................................68
PASSAGE 3 — Translation.....................................................................................................68
PASSAGE 4 — Gene Regulation (Lac Operon)......................................................................69
PASSAGE 5 — Mutations & Central Dogma..........................................................................70
DISCRETE QUESTIONS.......................................................................................................70
DNA Replication....................................................................................................................70
Transcription.........................................................................................................................71
Translation............................................................................................................................71
Gene Regulation...................................................................................................................71
Mixed Molecular Biology......................................................................................................72
Section 3 — Biological & Biochemical Foundations...........................................................74
PASSAGE 1 — Mendelian Inheritance..................................................................................74
PASSAGE 2 — Dihybrid Cross................................................................................................74
PASSAGE 3 — Population Genetics.......................................................................................75
PASSAGE 4 — Genetic Mutations.........................................................................................76
PASSAGE 5 — Genetic Disorders..........................................................................................76
Mendelian Genetics.............................................................................................................77
Population Genetics.............................................................................................................77
Mutations.............................................................................................................................77
Section 3 — Biological & Biochemical Foundations...........................................................79
3.4 Human Physiology..........................................................................................................79
PASSAGE 1 — Nervous System.............................................................................................79
PASSAGE 2 — Endocrine System..........................................................................................79
PASSAGE 3 — Cardiovascular System...................................................................................80
PASSAGE 4 — Respiratory System........................................................................................81
, PASSAGE 5 — Digestive System............................................................................................82
PASSAGE 6 — Renal System..................................................................................................82
PASSAGE 7 — Immune System.............................................................................................83
DISCRETE QUESTIONS...........................................................................................................84
Nervous System....................................................................................................................84
Endocrine System.................................................................................................................84
Cardiovascular System..........................................................................................................84
Respiratory System...............................................................................................................84
Section 4 — Behavioral Science Research Methods (Rebalanced).....................................86
4.3 Experimental Design • Stats • Validity • Bias • Ethics...................................................86
PASSAGE 1 — Experimental Design (Caffeine & Memory)...................................................86
PASSAGE 2 — Correlation & Statistics..................................................................................86
PASSAGE 3 — Validity & Reliability.......................................................................................87
PASSAGE 4 — Sampling & Bias.............................................................................................88
PASSAGE 5 — Bias in Experiments.......................................................................................88
PASSAGE 6 — Research Ethics..............................................................................................89
DISCRETE QUESTIONS...........................................................................................................90
Statistics................................................................................................................................90
Research Design...................................................................................................................90
Bias & Error...........................................................................................................................90
Section 3 — Biological & Biochemical Foundations...........................................................92
3.5 Developmental Biology..................................................................................................92
PASSAGE 1 — Early Embryonic Development......................................................................92
PASSAGE 2 — Germ Layers...................................................................................................93
PASSAGE 3 — Cell Signaling in Development.......................................................................94
PASSAGE 4 — Stem Cells & Differentiation..........................................................................94
PASSAGE 5 — Developmental Disorders..............................................................................95
PASSAGE 6 — Growth & Hormonal Regulation....................................................................96
DISCRETE QUESTIONS...........................................................................................................97
Early Development...............................................................................................................97
Germ Layers..........................................................................................................................97
Cell Differentiation...............................................................................................................97
, Stem Cells.............................................................................................................................97
Developmental Biology Concepts........................................................................................97
Section 3 — Biological & Biochemical Foundations...........................................................99
3.6 Microbiology...................................................................................................................99
PASSAGE 1 — Gram Staining & Cell Walls............................................................................99
PASSAGE 2 — Bacterial Growth & Antibiotics....................................................................100
PASSAGE 3 — Viral Replication...........................................................................................101
PASSAGE 4 — Microbial Genetics.......................................................................................101
PASSAGE 5 — Immune Response to Infection...................................................................102
PASSAGE 6 — Microbial Metabolism.................................................................................103
DISCRETE QUESTIONS........................................................................................................103
Bacterial Structure..............................................................................................................103
Viral Biology........................................................................................................................104
Antibiotics...........................................................................................................................104
Microbial Growth...............................................................................................................104
Resistance...........................................................................................................................104
Section 3 — Biological & Biochemical Foundations.........................................................106
3.6 Microbiology.................................................................................................................106
PASSAGE 1 — Gram Stain Anomaly & Cell Wall Resistance...............................................106
PASSAGE 2 — Horizontal Gene Transfer & Resistance Spread...........................................107
PASSAGE 3 — Viral Replication Strategy Shift....................................................................108
PASSAGE 4 — Biofilms & Chronic Infection........................................................................108
PASSAGE 5 — Metabolic Flexibility in Bacteria..................................................................109
PASSAGE 6 — Immune Evasion by Microbes.....................................................................110
DISCRETE QUESTIONS........................................................................................................110
Section 3 — Biological & Biochemical Foundations.........................................................113
3.7 Biochemistry Applications (VERY HARD)......................................................................113
PASSAGE 1 — Enzyme Kinetics & Inhibition.......................................................................113
PASSAGE 2 — Metabolic Pathway Regulation....................................................................114
PASSAGE 3 — Oxidative Phosphorylation..........................................................................115
PASSAGE 4 — Amino Acids & Protein Structure................................................................115
PASSAGE 5 — Lipid Metabolism.........................................................................................116
, PASSAGE 6 — Acid-Base & Buffer Systems.........................................................................117
DISCRETE QUESTIONS........................................................................................................117
Section 3 — Biological & Biochemical Foundations.........................................................121
3.8 Passage-Based Questions.............................................................................................121
PASSAGE 1 — Enzyme Regulation in Metabolic Stress......................................................121
PASSAGE 2 — Antibiotic Resistance Mechanisms..............................................................121
PASSAGE 3 — Viral Infection Dynamics..............................................................................122
PASSAGE 4 — Immune Response to Infection...................................................................123
PASSAGE 5 — Metabolic Adaptation to Oxygen Levels......................................................124
Section 3 — Biological & Biochemical Foundations.........................................................126
3.9 Discrete Questions.......................................................................................................126
Section 4: Psychological, Social, and Biological Foundations of Behavior.........................130
4.1 Psychology....................................................................................................................130
Section 4: Psychological, Social, and Biological Foundations of Behavior.........................137
4.2 Sociology.......................................................................................................................137
Section 4: Psychological, Social, and Biological Foundations of Behavior.........................143
4.4 Health and Society........................................................................................................143
Section 4.5 Passage-Based Questions..............................................................................149
PASSAGE 1 — Socialization and Identity............................................................................149
PASSAGE 2 — Health Disparities........................................................................................150
PASSAGE 3 — Learning and Behavior.................................................................................150
PASSAGE 4 — Social Stratification......................................................................................151
PASSAGE 5 — Health Belief Model.....................................................................................152
Section 4.6 Discrete Questions...........................................................................................153
,All answers at the end
Medical College Admission Test (MCAT) Practice Exam
Candidate Instructions
Welcome to the MCAT Practice Exam (2026 Edition).
This practice examination is designed to simulate the structure, timing, and content of the official
Medical College Admission Test (MCAT). Read all instructions carefully before beginning.
Before You Begin
Ensure you have a quiet, distraction-free testing environment.
Use only approved materials, such as scratch paper, pencils, and a basic calculator if
permitted by your instructor.
Complete all sections in the order presented.
Do not skip ahead to later sections before the allotted time.
Answer every question. There is no penalty for incorrect answers.
Manage your time carefully throughout the examination.
Exam Sections
1. Chemical and Physical Foundations of Biological Systems
2. Critical Analysis and Reasoning Skills (CARS)
3. Biological and Biochemical Foundations of Living Systems
4. Psychological, Social, and Biological Foundations of Behavior
5. High-Yield MCAT Review Appendix
General Advice
Read all passages and questions thoroughly.
Eliminate clearly incorrect answer choices before selecting your final response.
Base your answers solely on the information provided and your scientific reasoning skills.
If unsure of an answer, make your best educated guess and move on.
Test-Day Guidelines
To achieve the most realistic testing experience, follow these guidelines:
Testing Environment
Choose a quiet location with minimal interruptions.
Silence all electronic devices.
, Do not access textbooks, notes, internet resources, or AI tools during the examination.
Use a timer to monitor each section.
Breaks
For a realistic simulation, take only the scheduled breaks between sections.
Recommended break schedule:
10 minutes after Section 1
30 minutes after Section 2
10 minutes after Section 3
Professional Conduct
Complete the examination independently.
Avoid reviewing answers from previous sections once time has expired.
Maintain focus and pacing throughout the test.
Materials Checklist
□ Pencils or pens
□ Scratch paper
□ Water and snacks for breaks
□ Timer or stopwatch
□ Printed exam booklet
Timing and Scoring Overview
The MCAT is designed to assess critical thinking, scientific reasoning, problem-solving abilities, and
knowledge of foundational concepts in medicine and the sciences.
Recommended Timing
Section Suggested Time
Chemical and Physical Foundations of Biological Systems 95 Minutes
Critical Analysis and Reasoning Skills (CARS) 90 Minutes
Biological and Biochemical Foundations of Living Systems 95 Minutes
Psychological, Social, and Biological Foundations of Behavior 95 Minutes
Total Testing Time (excluding breaks) Approximately 6 Hours 15 Minutes
Scoring
Each MCAT section is scored independently and contributes equally to the overall score.