After a polypeptide is produced in protein synthesis, it's not necessarily a functional protein yet! Explore protein folding that occurs within levels of protein structure with the Amoeba Sisters! Primary, secondary, tertiary, and...

Organic chemistry isn’t that different from an adventure game, with substrates as characters, nucleophiles as magic potions, and reaction conditions as different magical kingdoms. In this episode of Crash Course Organic Chemistry, we’ll...

Any organism that gets its energy by consuming other organisms.
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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...

The position an organism occupies within a food chain.
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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 Glossary...

Find out about primary, secondary and tertiary economic activities and which jobs fit which category.
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People and places -Human geography - Ea
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Learning Points
Primary...

Hyperconjugation plays a significant role in stabilizing carbocations, where adjacent alkyl groups donate electron density via sigma bonds to the positively charged carbon, spreading the charge and increasing stability.

The inductive effect plays a significant role in determining a molecule's basicity. Electron-withdrawing groups decrease basicity by pulling electron density away from the nitrogen or oxygen atom, weakening its ability to accept protons....

In this video, Jonathan from the Institute of Human Anatomy discusses what causes syphilis, the problems it causes throughout the body, how it is treated, as well as who should consider getting tested.

For ecosystems to function they need energy; and we can see how this energy moves through ecosystems with food chains. We also explore how the populations of predators and prey vary over time with predator prey cycles.

This video will demonstrate how to complete a color wheel using paint.

Strong C-O Bond Oxidations with Jones Reagent & KMnO4

Weak C-O Bond Oxidations With PCC, DMP, etc.

What's with this hierarchy? Primary, secondary, tertiary... can't all carbons be equal? Well, no. We need to be able to label the degree of substitution of any carbon in an organic molecule so that we can make predictions about the...

We've got starting material and we've got a target molecule, and we've gotta figure out how to make the transformation in just two steps. Sift through that bag of synthetic tricks!

For this one we need to know the ability of different oxidizing agents to react with various functional groups, and what functional groups will result.

An Interactive Biology First - Today, I share the biology behind one of the most popular episodes of The Good Doctor. Some of the topics covered are the meninges surrounding the brain - the pia mater, arachnoid mater, and dura mater. We...

Learn the fine structure of the lungs.

Radical Bromination: The Primary Alkane Reaction (Theory & Practice)

An overview of the ways that carbocations can rearrange to form more stable intermediates.

Learn the basics about alcohols and what they are.

How do we find out the position that an organism occupies in a food chain? The different feeding positions in a food chain or web are called trophic levels. All food chains and webs have at least two trophic levels, starting at level one...