Master the CPBS
with Expert Help
The Chemical and Physical Foundations of Biological Systems (CPBS) integrates chemistry and physics through a biological lens. Dr. Donnelly’s Science Passage Buster strategy eliminates the “detail trap” and trains you to extract the right answer in under 3 minutes per passage.
Five Disciplines. One Section.
The CPBS section demands a tightly integrated knowledge of general chemistry, physics, biochemistry, organic chemistry, and biology. Know the weighting to prioritise your study time wisely.
General Chemistry
Covers acid-base equilibria, electrochemistry, thermodynamics, and solutions chemistry. Tested through passage-based contexts requiring both conceptual and calculation-based skills.
Physics
Focuses on mechanics, fluid dynamics, electricity, optics, and waves applied in biological and medical contexts. Expect passage-based questions that test conceptual understanding over plug-and-chug calculation.
Biochemistry
Enzyme kinetics, protein chemistry, metabolic pathways, and thermodynamics of biochemical reactions overlap heavily with BBLS content — a strong biochemistry foundation pays dividends across two sections.
Organic Chemistry
Primarily focuses on reaction mechanisms, stereochemistry, and spectroscopy as they relate to biological molecules. Lab techniques and separation methods also appear in this section.
Introductory Biology
A small but present slice that bridges physics and chemistry into biological systems — particularly membrane transport, cell signalling, and physiological processes relevant to the medical context.
Eliminate the
“Detail Trap”
The biggest mistake CPBS students make is getting lost in passage details. Dr. Donnelly’s Science Passage Buster trains you to navigate passages strategically — never reading everything, always extracting what matters.
Expert Guidance.
Proven Results.
Dr. Donnelly’s personalised approach identifies your exact weaknesses then closes them systematically. Students leave sessions with both content confidence and a strategic toolkit.
Master the 2 Foundational Concepts
The Chemical and Physical Foundations of Biological Systems section is built around two Foundational Concepts that span the full range of mechanical, electrical, chemical, and biological interactions.
Why Choose
Dr. Stuart Donnelly?
With a Ph.D. from Oxford and over two decades of MCAT tutoring experience, Dr. Donnelly brings elite academic rigour and practical test strategy together in a single, powerful package.
Learn from a Leading Expert
Recognised as one of the country’s most experienced MCAT educators, Dr. Donnelly delivers a personalised experience that generic courses cannot replicate:
Ready to Crack
the CPBS Section?
Stop letting passage details overwhelm you. The Science Passage Buster gives you a repeatable framework to navigate any CPBS passage in under 3 minutes and convert it into points.