1 - 12 of 59 results
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.

Biochemistry & Molecular Biology
Cell Biology
Animations
High School — AP/IB
College
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.

Biochemistry & Molecular Biology
Cell Biology
Animations
High School — AP/IB
College
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.

Biochemistry & Molecular Biology
Cell Biology
Animations
High School — AP/IB
College
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.

Cell Biology
Evolution
Science Practices
Scientists at Work
High School — General
High School — AP/IB
College
Red Tattoo

This activity explores an image of tattoo ink particles inside cells, which serves as a phenomenon for learning about the structure and color of human skin.

Cell Biology
Anatomy & Physiology
Phenomenal Images
High School — General
High School — AP/IB
College
Photosynthesis

This multipart animation series explores the process of photosynthesis and the structures that carry it out.

Biochemistry & Molecular Biology
Cell Biology
Anatomy & Physiology
Animations
High School — General
High School — AP/IB
College
Why Two Heads?

This activity explores images of planarians regenerating missing body parts, which serve as phenomena for learning about cell division and differentiation.

Cell Biology
Anatomy & Physiology
Phenomenal Images
High School — General
High School — AP/IB
Cancer Cell Invasion

This activity explores an image of tumor cells invading muscle tissue, which serves as a phenomenon for learning about cancer, mutations, and cell division.

Genetics
Cell Biology
Phenomenal Images
High School — General
High School — AP/IB
Cystic Fibrosis Mechanism and Treatment

This animation shows how mutations in an ion channel protein lead to the genetic disease cystic fibrosis. The animation also discusses how research on this protein has been used to develop treatments for the disease.

Biochemistry & Molecular Biology
Genetics
Cell Biology
Animations
High School — General
High School — AP/IB
College
Living Together

This activity explores images of the bobtail squid, which serve as phenomena for learning about symbiosis and interspecies interactions.

Cell Biology
Microbiology
Phenomenal Images
High School — General
High School — AP/IB
Role of p53 in the Cell Cycle

This activity analyzes a published scientific figure from a study that investigated the role of p53 in cell cycle regulation.

Cell Biology
Science Practices
Data Points
High School — AP/IB
College
Identifying the Key Genes for Regeneration

This video describes how scientists silence different genes in regenerating planaria to study the process of regeneration at the molecular level.

Biochemistry & Molecular Biology
Cell Biology
Anatomy & Physiology
Scientists at Work
High School — General
High School — AP/IB
College