This collection is being developed for the revised MCAT® exam that will first be administered in April 2015. The collection contains more than 900 videos and 2000 practice questions. Content will be added to the collection through 2015. All content in this collection has been created under the direction of the Khan Academy and has been reviewed under the direction of the AAMC (Association of American Medical Colleges). All materials are categorized according to the pre-health competencies tested by the new MCAT exam; however, the content in this collection is not intended to prescribe a program of study for the new MCAT exam. The content is also included in the Pre-health Collection within MedEdPORTAL’s iCollaborative sponsored by the AAMC: *MCAT® is a program of the AAMC and related trademarks owned by the Association include Medical College Admission Test, MCAT, and MCAT2015. For more information about the MCAT exam visit
Community Questions

Biological and Biochemical Foundations of Living Systems Passages

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Chemical and Physical Foundations of Biological Systems Passages

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Psychological, Social, and Biological Foundations of Behaviors Passages

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Foundational Concept 1: Biomolecules have unique properties that determine how they contribute to the structure and function of cells, and how they participate in the processes necessary to maintain life.


Foundational Concept 2: Highly-organized assemblies of molecules, cells, and organs interact to carry out the functions of living organisms

Organ systems

Foundational Concept 3: Complex systems of tissues and organs sense the internal and external environments of multicellular organisms, and through integrated functioning, maintain a stable internal environment within an ever-changing external environment.

Physical processes

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.

Chemical processes

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.

Processing the environment

Foundational Concept 6: Biological, psychological, and socio-cultural factors influence the ways that individuals perceive, think about, and react to the world.


Foundational Concept 7: Biological, psychological, and socio-cultural factors influence behavior and behavior change.

Individuals and society

Foundational Concept 8: Psychological, socio-cultural, and biological factors influence the way we think about ourselves and others.

Society and culture

Foundational Concept 9: Cultural and social differences influence well-being.

Social inequality

Foundational concept 10: Social stratification and access to resources influence well-being.

Individuals and society

Foundational Concept 8: Psychological, socio-cultural, and biological factors influence the way we think about ourselves and others.
Community Questions
All content in “Individuals and society”


8A: Who exactly are we? How do we develop our morals and patterns of learning? What influences our behaviors in social situations? Physicians must have a keen understanding of their patients’ definitions of themselves in order to treat holistically. Over the past few centuries, several notable psychologists - from Freud to Erikson to Vygotsky - have attempted to answer these grand question. In this module you will explore some of their ideas surrounding the concept of self-identity as we delve into the different phases of our life as we transform from infants to teenagers to full-fledged adults.

Social behavior

8C: Who are we attracted to and why? Why do some people behave aggressively and others altruistically? These are questions we can begin to answer through an understanding of social behavior. This tutorial will help you answer these questions as well as give you insight into the basics of attachment and the relationships we have with our parents and those around us as we explore some of the aspects that govern our interactions with other human beings.

Biological explanations of social behavior in animals

Nature vs. nurture: are animal behaviors taught or genetically passed down from generation to generation? Here we explore how social behaviors, like genuinely caring about the well being of those in your community, are more “nature” than “nurture.”


Why is it that some traits like skin color, religion, or cultural values have more meaning than others like eye color or personality? Here we explore how discrimination begins as a stereotype and can escalate into behaviors that can negatively influence whole communities of people.