MCAT In The Car

MCAT Practice Questions (Action Potentials & Acid-Base Balance)

This episode explores the intricate connection between the nervous system’s electrical signaling via action potentials and the body’s chemical buffering system governed by the Henderson-Hasselbalch equation, essential for maintaining physiological homeostasis. Designed for post-MCAT learners, it breaks down these concepts in accessible terms while highlighting their clinical and exam relevance. Li...

Master the critical metabolic crossroads of glycolysis and gluconeogenesis with a clear, exam-focused analysis of their reciprocal regulation, rate-limiting enzymes, and the pivotal role of fructose 2,6-bisphosphate. This episode explains how insulin and glucagon control these opposing pathways to maintain blood glucose, prevent futile cycling, and support energy demands in fed and fasting states....

This episode integrates organic chemistry, biology, and biochemistry by treating amino acids as physical molecules defined by their charge and hydrophobicity, demonstrating how substitutions alter protein tertiary structure and function. It provides a precise breakdown of enzyme kinetics, focusing on V_{max} and K_m, and illustrates the effects of competitive, uncompetitive, and noncompetitive inh...

The MCAT is a 7.5-hour endurance marathon testing foundational pre-med sciences and critical reasoning across four AAMC sections: Chemical & Physical Foundations (59 questions), Critical Analysis & Reasoning Skills (CARS – 53 questions), Biological & Biochemical Foundations (59 questions), and Psychological, Social & Biological Foundations of Behavior (59 questions). This complete...