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ATP Synthesis

This animation shows how the proton gradient across the mitochondrial membrane powers the ATP synthase enzyme to make ATP. It is the third of three animations about cellular respiration.

Electron Transport Chain

This animation shows how the enzyme complexes of the electron transport chain harvest energy from cofactor molecules to pump protons across the mitochondrial membrane and establish a chemical gradient. It is the second of three animations about cellular respiration.

Citric Acid Cycle

This animation shows the reactions of the citric acid cycle, which splits off carbon atoms and generates energy-rich reduced forms of cofactor molecules. It is the first of three animations about cellular respiration.

The Science of an Extreme Animal Athlete

This video follows biologist Shane Campbell-Staton, who is studying the adaptations that allow deer mice living at high elevations to stay warm and active during the winter.

Phil Gibson Discusses Dog Genomics Resources

There is a rich body of literature on research investigating evolution using dogs as a general example and studies specifically investigating canine evolution. In this Educator Voices video, Phil Gibson discusses how he uses BioInteractive's dog genomics resources with his students.

Constructing Explanations with Finches for 9th Graders

In this Educator Voices article, hear from New Jersey educator Karen Lucci as she outlines how she utilizes our finch resources with her introductory biology students in constructing explanations about evolution by natural selection.