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Attention, future medical professionals!
We are happy to announce that Khan Academy will retain our MCAT course until 2026 with the support of the Association of American Medical Colleges (AAMC). We continue to work to improve the MCAT course to make it the very best it can be. Towards this end, we have updated over 80 Biological and Biochemical Foundations of Living Systems (BBLS) passages in Unit 2 of the course. Please click here to learn about the passage improvements and how best to use these passages to prepare for the MCAT. We wish you the best of luck with your studies!
About the MCAT and how to use this course: Welcome to the MCAT course Foundation 1: Biomolecules: Practice Passages: Biological and Biochemical Foundations of Living SystemsFoundation 2: Cells: Practice Passages: Biological and Biochemical Foundations of Living SystemsFoundation 3: Organ Systems: Practice Passages: Biological and Biochemical Foundations of Living Systems Foundation 4: Physical processes: Practice Passages: Chemical and Physical Foundations of Biological SystemsFoundation 5: Chemical processes: Practice Passages: Chemical and Physical Foundations of Biological Systems Foundations of behavior passages: Practice Passages: Psychological, Social, and Biological Foundations of Behavior Critical analysis and reasoning skills (CARS) practice questions: Practice Passages: Critical Analysis and Reasoning Skills (CARS) Amino acids and proteins: Foundation 1: BiomoleculesProtein analysis techniques: Foundation 1: BiomoleculesEnzyme structure and function: Foundation 1: BiomoleculesEnzyme kinetics: Foundation 1: BiomoleculesDNA: Foundation 1: BiomoleculesGene control: Foundation 1: BiomoleculesGenetic mutations: Foundation 1: BiomoleculesMendelian genetics: Foundation 1: Biomolecules DNA technology: Foundation 1: BiomoleculesChromosomal inheritance: Foundation 1: BiomoleculesEvolution and population dynamics: Foundation 1: BiomoleculesPrinciples of bioenergetics: Foundation 1: BiomoleculesOverview of metabolism: Foundation 1: BiomoleculesCarbohydrates: Foundation 1: BiomoleculesCarbohydrate Metabolism: Foundation 1: BiomoleculesKrebs (citric acid) cycle and oxidative phosphorylation: Foundation 1: BiomoleculesFat and protein metabolism: Foundation 1: Biomolecules Cell membrane overview: Foundation 2: CellsTransport across a cell membrane: Foundation 2: CellsCell-cell interactions: Foundation 2: CellsEukaryotic cells: Foundation 2: CellsCytoskeleton: Foundation 2: Cells Prokaryotes/bacteria: Foundation 2: CellsViruses: Foundation 2: CellsCellular division: Foundation 2: CellsEmbryology: Foundation 2: CellsCellular development: Foundation 2: Cells Biological basis of behavior: The nervous system: Foundation 3: Organ systemsNeural cells: Foundation 3: Organ systemsNeuron membrane potentials: Foundation 3: Organ systemsNeuronal synapses: Foundation 3: Organ systemsMuscular system: Foundation 3: Organ systemsSkeletal system: Foundation 3: Organ systemsEndocrine system and hormonal regulation: Foundation 3: Organ systemsHormonal regulation of metabolism: Foundation 3: Organ systemsCirculatory system: Foundation 3: Organ systems Hematologic system: Foundation 3: Organ systemsRespiratory system: Foundation 3: Organ systemsLymphatic system: Foundation 3: Organ systemsImmune system: Foundation 3: Organ systemsRenal system: Foundation 3: Organ systemsRenal regulation of blood pressure: Foundation 3: Organ systemsGastrointestinal system: Foundation 3: Organ systemsIntegumentary system: Foundation 3: Organ systemsReproductive system: Foundation 3: Organ systems Vectors and scalars: Foundation 4: Physical processesTranslational motion and calculations: Foundation 4: Physical processesForce and Newton's laws of motion: Foundation 4: Physical processesVector analysis and forces acting on an object: Foundation 4: Physical processesWork and energy: Foundation 4: Physical processesFluids at rest: Foundation 4: Physical processesFluids in motion: Foundation 4: Physical processesGas phase: Foundation 4: Physical processesKinetic molecular theory of gases: Foundation 4: Physical processesElectrostatics: Foundation 4: Physical processesCurrent and resistance: Foundation 4: Physical processesCapacitors: Foundation 4: Physical processesMagnetism: Foundation 4: Physical processes Electrochemistry: Foundation 4: Physical processesSound: Foundation 4: Physical processesLight and electromagnetic radiation: Foundation 4: Physical processesInfrared and Ultraviolet/Visible spectroscopy: Foundation 4: Physical processesProton nuclear magnetic resonance: Foundation 4: Physical processesThin lenses: Foundation 4: Physical processesSpherical mirrors: Foundation 4: Physical processesReflection and refraction: Foundation 4: Physical processesAtomic nucleus: Foundation 4: Physical processesElectronic structure: Foundation 4: Physical processesPeriodic table: Foundation 4: Physical processesStoichiometry: Foundation 4: Physical processesBalancing chemical equations: Foundation 4: Physical processesRedox reactions: Foundation 4: Physical processes Acid/base equilibria: Foundation 5: Chemical processesTitrations : Foundation 5: Chemical processesSolubility equilibria: Foundation 5: Chemical processesDot structures: Foundation 5: Chemical processesStereochemistry: Foundation 5: Chemical processesCovalent bonds: Foundation 5: Chemical processesSeparations and purifications: Foundation 5: Chemical processesNucleic acids, lipids, and carbohydrates: Foundation 5: Chemical processesAmino acids, peptides, proteins: Foundation 5: Chemical processesProteins: Foundation 5: Chemical processesCarbohydrates: Foundation 5: Chemical processes Alpha-carbon chemistry: Foundation 5: Chemical processesAldehydes and ketones: Foundation 5: Chemical processesAlcohols and phenols: Foundation 5: Chemical processesCarboxylic acids: Foundation 5: Chemical processesCarboxylic acid derivatives: Foundation 5: Chemical processesEnzymes: Foundation 5: Chemical processesKinetics: Foundation 5: Chemical processesEquilibrium: Foundation 5: Chemical processesBioenergetics: Foundation 5: Chemical processesThermodynamics: Foundation 5: Chemical processesThermochemistry: Foundation 5: Chemical processes Sensory perception: Foundation 6: Processing the environmentSight (vision): Foundation 6: Processing the environmentSound (Audition): Foundation 6: Processing the environmentSomatosensation: Foundation 6: Processing the environmentTaste (gustation) and smell (olfaction): Foundation 6: Processing the environmentSleep and consciousness: Foundation 6: Processing the environment Drug dependence: Foundation 6: Processing the environmentAttention: Foundation 6: Processing the environmentMemory: Foundation 6: Processing the environmentCognition: Foundation 6: Processing the environmentLanguage: Foundation 6: Processing the environmentEmotion: Foundation 6: Processing the environmentStress: Foundation 6: Processing the environment Biological basis of behavior: Nervous system: Foundation 7: BehaviorHuman development: Foundation 7: BehaviorBehavior and genetics: Foundation 7: BehaviorMotivation and attitudes: Foundation 7: BehaviorTheories of personality: Foundation 7: Behavior Psychological disorders: Foundation 7: BehaviorSocial psychology: Foundation 7: BehaviorNormative and non-normative behavior: Foundation 7: BehaviorLearning: Foundation 7: BehaviorTheories of attitude and behavior change: Foundation 7: Behavior Self-identity: Foundation 8: Individuals and societyPerception, prejudice, and bias: Foundation 8: Individuals and societyAttributing behavior to persons or situations: Foundation 8: Individuals and societySocial behavior: Foundation 8: Individuals and society Social interactions: Foundation 8: Individuals and societySelf-presentation and interacting with others: Foundation 8: Individuals and societyBiological explanations of social behavior in animals: Foundation 8: Individuals and societyDiscrimination: Foundation 8: Individuals and society Social structures: Foundation 9: Society and cultureDemographics: Foundation 9: Society and cultureCulture: Foundation 9: Society and culture Social inequality: Foundation 10: Social inequality
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