Ace the Physical Sciences Section

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The Chemical and Physical Foundations of Biological Systems section of the MCAT is 95-minute section contains 59 multiple-choice questions. This section asks you to combine your knowledge of foundational concepts in the chemical and physical sciences with your scientific inquiry, reasoning, and research and statistics skills to solve problems that demonstrate readiness for medical school.

Understanding the mechanical, physical, and biochemical functions of tissues, organs, and organ systems is important to the study of medicine.

You will be tested on your knowledge of the basic chemical and physical principles that underlie the mechanisms operating in the human body, and your ability to apply an understanding of these general principles to living systems.

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Dr. Donnelly can teach you the correct approach to the Physical Sciences section of the MCAT. This will significantly increase your chance of getting your target score to attend the medical school of your choice.

Private lessons with Dr. Donnelly are available either online via Zoom or in-person at our Sorrento Valley-based office here in San Diego.

Over the years, Dr. Donnelly has helped literally hundreds of students to improve their MCAT scores significantly and achieve their goal of getting accepted into a top-tier medical program. We are confident that he can do the same for you.

MCAT Physical Sciences Section

Two Key Concepts Tested

Foundational Concept 4: Complex living organisms transport materials, sense their environment, process signals, and respond to changes using processes that can be understood in terms of physical principles.

  • 4A: Translational motion, forces, work, energy, and equilibrium in living systems
  • 4B: Importance of fluids for the circulation of blood, gas movement, and gas exchange
  • 4C: Electrochemistry and electrical circuits and their elements
  • 4D: How light and sound interact with matter
  • 4E: Atoms, nuclear decay, electronic structure, and atomic chemical behavior
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Foundational Concept 5: The principles that govern chemical interactions and reactions form the basis for a broader understanding of the molecular dynamics of living systems.

  • 5A: Unique nature of water and its solutions
  • 5B: Nature of molecules and intermolecular interactions
  • 5C: Separation and purification methods
  • 5D: Structure, function, and reactivity of biologically-relevant molecules
  • 5E: Principles of chemical thermodynamics and kinetics
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  1. About the MCAT
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  5. MCAT Exam - Section by Section
    1. Biological & Biochemical Foundations of Living Systems
    2. Chemical & Physical Foundations of Biological Systems
    3. Psychological, Social, & Biological Foundations of Behavior
    4. Critical Analysis & Reasoning Skills (CARS)

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