Things have been getting more and more complicated here in Crash Course Organic Chemistry, and as we deal with more complex molecules, parts of molecules we don’t want to react will start reacting along with the parts that we do....

As we construct more complex organic molecules, it can start to feel like decrypting a complex code. Organic synthesis takes simple starting materials, and turns them into complex structures, and reverse engineering can help us figure...

When asked to build housing for 100 families in Chile ten years ago, Alejandro Aravena looked to an unusual inspiration: the wisdom of favelas and slums. Rather than building a large building with small units, he built flexible...

Atoms or molecules combine to form a new compound in a synthesis reaction. Examples include the addition of oxygen to magnesium metal to create magnesium oxide and the addition of carbon dioxide to water to crete carbonic acid. A...

We’re going back to the lab! So far we’ve learned some important lab techniques that organic chemists might use day to day, like chromatography and proton NMR, but there are even more to learn. In this episode of Crash Course Organic...

What do the smells of feet, armpits, vomit, and goats all have in common? (Besides being super gross…) Carboxylic acids! Despite being responsible for some of our least favorite odors, carboxylic acids are also super useful in organic...

Explore the cell cycle with the Amoeba Sisters and an important example of when it is not controlled: cancer. Table of Contents: 00:00 Intro 1:00 Cell Growth and Cell Reproduction 1:42 Cancer (explaining uncontrolled cell growth) 3:27...

Remember how Darwin and Mendel lived around the same time, but everyone forgot about Mendel until 1900, and even then biologists saw Darwinism and Mendelism as two competing grand theories about how life works?

Well, in this episode...

Synthesizing multiple sources in a crucial part of any research project. It's the step where we take information from all of our sources and combine it together into a single project or paper. In this video, we'll explain how to analyze...

DNA polymerases are the enzymes that build DNA in cells. During DNA replication (copying), most DNA polymerases can “check their work” with each base that they add. This process is called proofreading. If the polymerase detects that a...

The cell cycle is a highly regulated process of eukaryotic cell division involving interphase (G1, S, G2 phases) for growth and DNA replication, followed by mitosis for chromosome segregation and cell division. Progression through the...

We just learned about hydrogenation of alkenes via homogeneous catalysis, and the complicated catalytic cycles that are involved. But there is an additional aspect that we need to discuss. Whenever possible, we want to be able to employ...

The study of chemical reactions in living organisms, the chemistry of life.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....

Organisms whose cells contain complex membrane-bound structures, called organelles.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...

The cycle of events involved in normal cell growth and division, in multicellular organisms.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise...

Adenosine Triphosphate, a molecule that acts as an energy store in all living cells.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...

Dr. Forrester teaches about photosynthesis and the functions of a plant’s stem.

We introduced the movement of idealism and discussed its most important early proponents, such as George Berkeley and Immanuel Kant. Now let's examine the key figures that were to follow, including Johann Fichte, Friedrich Schiller,...

This video by the instructor provides tips and tricks on how to complete the course successfully and make the best use of the learning process and the application development concepts.
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This clip is from the chapter...

After WWII, the leadership of the pharma industry was taken over by America, just as with many other industries. And heavy investment in pharma research produced some spectacular breakthroughs that made this post-war era the "Golden Era...

Professor Dave explains the science and theory behind pericyclic reactions (Part One)

Amino Acid Metabolism the Methionine (SAM) Cycle (2)

Amino Acid Biosynthesis Biosynthesis of Chorismate

In this video, we will discuss the general isoprenoid biosynthesis and processing pathways and how statin medications fit into the big picture (e.g., HMG-CoA Reductase). We will see how statins disrupt Coenzyme Q and vitamin D synthesis.