Bozeman Science
The Molecules of Life
Paul Andersen describes the macromolecules that make up living organisms. He starts with a brief description of organic chemistry and the importance of functional groups. He also covers both dehydration and hydrolysis in polymerization....
Bozeman Science
Biological and Polymer Systems
In this video Paul Andersen explains how the structure of a biomolecule fits the function of the biomolecule. For example and enzyme must interact correctly with a substrate to lower the activation energy, The covalent and non-covalent...
Bozeman Science
Molecular Solids
In this video Paul Andersen describes the structure and explains the properties of molecular solids. High intramolecular forces hold electrons and reduce conductivity, whereas low intermolecular forces decrease the melting point....
Bozeman Science
Reversible Reactions
In this video Paul Andersen describes how reversible reactions achieve equilibrium as reactants are converted to products and products are converted to reactants. A model shows how forward reaction rates and reverse reactions rates...
Bozeman Science
Free Energy and the Equilibrium Constant
In this video Paul Andersen explains how thermodynamic and equilibrium reasoning can be related through changes in free energy and the equilibrium constant. When the delta G is negative the reaction shifts to the right or favors...
Psychology Unlocked
What is an experiment? The Experimental Method in Psychology
As Psychology is a science, it uses the experimental method in a similar way to Physics, Chemistry and Biology. However, because of the subject matter Psychologists are studying, it can sometimes seem a bit confusing. Under the hood, a...
Bozeman Science
The Origin of Life - Scientific Evidence
Paul Andersen discusses scientific evidence of the origin of life on our planet. He begins with a brief discussion of the age of the earth and ends with the future of humanity. He includes geologic, chemical and molecular data.
Catalyst University
Human Sulfur Assimilation: ATP Sulfurylase and ASP Kinase
Human Sulfur Assimilation: ATP Sulfurylase and ASP Kinase
Bozeman Science
Catalyst Classes
In this video Paul Andersen explains how the three types of catalyst classes act to speed up reactions. Acid-base catalysts either add or remove a proton from one of the reactants. Surface catalysts provide active sites where reactants...
Howard Hughes Medical Institute
The Making of the Fittest: Got Lactase? The Co-evolution of Genes and Culture
Got milk? Only two cultures have had it long enough to develop the tolerance of lactose as an adult. Learn how the responsible genes evolved along with the cultures that have been consuming milk. This rich film is supplied with a few...
Socratica
Ionic and Covalent Bonds and Hydrogen Bonds
What determines the type of bond two atoms will form? Science scholars examine the factors that affect the formation of molecules and compounds through a short video from Socratica's biology series. Topics include valence electrons,...
Socratica
What Is Biochemistry?
Watch as chemistry comes alive! Socratica's biology playlist kicks off with a simple video detailing the principle components of biochemistry. Content includes carbohydrates, proteins, and nucleic acids. The narrator describes each class...
Howard Hughes Medical Institute
Seeing Single Molecules Move
Seeing is believing! Viewers observe the latest in technology—the ability to watch as a protein molecule searches for the appropriate binding site on a DNA molecule! A short video follows transcription factors SOX2 and OCT4 in their...
Howard Hughes Medical Institute
The Day the Mesozoic Died
A dynamic, three-part feature explores what caused mass extinction of the dinosaurs at the end of the Cretaceous period. Computer animations, interviews, and on-site footage from around the world divulge evidence that it was the K-T...