1 - 12 of 78 results

Digestive System Card Sort

In this card activity, students investigate the functions of major digestive organs.

Biochemistry & Molecular Biology
Cell Biology
Anatomy & Physiology
Card Activities
High School — General
High School — AP/IB
College
Image of a fish jumping out of water.

The Beautiful Undammed

Release Date
Duration 00:27:51

After a dam removal on Washington’s Elwha River, scientists are chronicling a story of ecological rebirth. Recovering salmon populations are transferring critical nutrients from the ocean into the forests, enriching the entire ecosystem.

Biomolecules on the Menu

In this Click & Learn, students explore the process of digestion and how it connects to metabolism and cellular respiration. 

Biochemistry & Molecular Biology
Cell Biology
Anatomy & Physiology
Click & Learn
High School — General
High School — AP/IB
College

Energy Flow through Ecosystems

This Click & Learn traces the flow of energy from the Sun all the way to cells within organisms. The embedded questions and calculations guide students’ understanding of how energy is distributed through a variety of ecosystems.

Ecology
Science Practices
Click & Learn
High School — General
High School — AP/IB

Pyruvate Dehydrogenase

This animation shows how the pyruvate dehydrogenase enzyme complex converts pyruvate into acetyl-CoA. It is the second of six animations about cellular respiration.

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

Glycolysis

This animation shows how glycolysis converts glucose into pyruvate through a series of enzyme reactions. It is the first of six animations about cellular respiration. These animations bring to life the molecular engines inside mitochondria that generate ATP, the main source of chemically stored energy used throughout the body.

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

ATP in Use

This animation shows two examples of how the cell uses energy from ATP. It is the sixth of six animations about cellular respiration. These animations bring to life the molecular engines inside mitochondria that generate ATP, the main source of chemically stored energy used throughout the body.

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 fifth of six animations about cellular respiration. These animations bring to life the molecular engines inside mitochondria that generate ATP, the main source of chemically stored energy used throughout the body.

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 fourth of six animations about cellular respiration. These animations bring to life the molecular engines inside mitochondria that generate ATP, the main source of chemically stored energy used throughout the body.

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

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 third of six animations about cellular respiration. These animations bring to life the molecular engines inside mitochondria that generate ATP, the main source of chemically stored energy used throughout the body.

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

The Art of Hiding

This activity explores an image of a moth with unusual markings on its wings, which serves as a phenomenon for learning about mimicry and adaptation.

Anatomy & Physiology
Evolution
Phenomenal Images
High School — General
High School — AP/IB

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