Free Study GuidePractice questions, flashcards, and related resources

Free MCAT Bio/Biochem Exam Prep

MCAT Biological and Biochemical Foundations of Living Systems

Prepare for the MCAT Bio/Biochem exam without spending hundreds on expensive prep courses. Free study guides, practice questions, flashcards, and related exam resources.

Same family resources

Explore More MCAT

Continue into nearby exams from the same family. Each card keeps practice questions, study guides, flashcards, videos, and articles in one place.

Why Choose Us

Free MCAT Bio/Biochem Prep Tools

117+ Practice Questions

Practice by topic with detailed answer explanations

AI Tutor Explains Mistakes

Understand why answers are wrong, not just which ones

Updated for 2026

Review the latest update date on each resource

$0 Forever

Start without a credit card or trial

Compare:
Kaplan $300+Achievable $200+OpenExamPrep $0

What You'll Study

11 chapters covering the exam topics in this guide

MCAT Bio/Biochem Exam Details

MCAT Biological and Biochemical Foundations of Living Systems

Administered by Association of American Medical Colleges (AAMC)

Official Source
Section scored 118–132; median ~125; competitive medical school applicants typically score 128–132 on this section
Passing Score
59
Questions
95
Minutes
$355 (2026 total MCAT exam fee)
Exam Fee
Study time: 200–300 hours total MCAT prep; 60–100 hours specifically for this section

Exam Content Breakdown

Based on the official Association of American Medical Colleges (AAMC) content outline

Introductory Biology65%

Cell biology, molecular biology, genetics, microbiology, and organ systems physiology including nervous, endocrine, circulatory, immune, digestive, renal, and reproductive systems

First-Semester Biochemistry25%

Amino acids and protein structure, enzyme kinetics and regulation, carbohydrates, lipids, nucleic acids, and major metabolic pathways (glycolysis, TCA cycle, oxidative phosphorylation, gluconeogenesis, fatty acid metabolism)

General Chemistry5%

Acid-base chemistry, buffer systems, electrochemistry relevant to biological processes (membrane potentials, redox reactions)

Organic Chemistry5%

Functional group reactivity relevant to biochemistry: nucleophilicity, carbonyl chemistry, enzyme mechanism, lipid structure, and organic reactions in metabolic pathways

What's Included

11 Chapters

Complete exam coverage

Practice Quizzes

With detailed explanations

Free to Start

No credit card required

Ran Chen - AI Engineer, CFP®
CFP®
Why It's Free

Quality Exam Prep Shouldn't Cost Hundreds

I'm Ran Chen, an engineer with 20+ years of coding experience. I passed my Life Insurance license, EA exam, SIE, Series 6, 63, 65, and finally the CFP® exam.

Through all these exams, one thing became clear: exam prep is expensive. But with AI, we can change that. Quality preparation can now be free for everyone.

About Ran Chen

MCAT Bio/Biochem Exam FAQ

Official Association of American Medical Colleges (AAMC) Resources

Verify information with these official sources

More Free Resources

No Credit Card Required

Ready to Start Your Free MCAT Bio/Biochem Prep?

Review the study guide, practice key concepts, and use the free tools at your own pace.