Paul Andersen explains how variation is created within a cell. He starts by showing how molecular variation can increase fitness at the local level. He explains how an additional chlorophyll molecule allows plants to absorb more light...

On top of our heads, there is a type of yeast that lives and dines on all of our scalps. Feasting constantly, it's in paradise. And in about half of the human population, its activity causes dandruff. So, why do some people have more...

Hank talks about the molecules that make up every living thing - carbohydrates, lipids, and proteins - and how we find them in our environment and in the food that we eat.

Paul Andersen describes the four major biological molecules found in living things. He begins with a brief discussion of polymerization. Dehydration synthesis is used to connect monomers into polymers and hydrolysis breaks them down...

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...

Rancidity refers to the complete or incomplete hydrolysis or oxidation of fats and oils when exposed to air, light, moisture, and bacterial activity; this generally occurs in food items, making them undesirable for consumption. In more...

A type of unsaturated fatty acid, essential for human health.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...

There are 3 different types of solutions - unsaturated, saturated and supersaturated. The main difference between these 3 types of solutions is the amount of solute in each type of solution. In this video, we explain the 3 different...

Do you know what Trans fatty acids are? Recent studies have shown a correlation between high levels of Trans fatty acids and depression. In this video, I talk about what Trans fatty acids are, how they can affect your mood,...

The video “Exploring the Solution” uses an extended example to introduce the parts of a solution and types of solutions.

This video explores five fun facts about fats.

This video is answering the question of are there different types of fat.

Learn the basics about plant oils and how they are extracted.

Basics of beta-oxidation for the monounsaturated fatty acid, oleic acid (also valid for palmitoleic acid)<br/>

Fatty Acid Activation

Rancidity refers to the complete or incomplete hydrolysis or oxidation of fats and oils when exposed to air, light, moisture, and bacterial activity; this generally occurs in food items, making them undesirable for consumption. In more...

Unsaturated Fatty Acids Part 1: Nomenclature and Structure

Unsaturated Fatty Acids Part 2: Nomenclature and Properties

Learn the basics about testing alkenes with bromine water. Why is bromine water used to test alkenes? What is bromine water made of? Find out more in this video!

Learn the basics about fats and oils, more precisely plant oils. Where are these found? How do we extract fats and oils from plants? What are the fats and oils used for? Find out more in this video!