Aldehyde Dehydrogenase 1

Enzymes have optimal conditions under which they operate. Temperature, pH, enzyme concentration and substrate concentration are some conditions that affect the rate of reaction. As enzymes are proteins, they have an optimum temperature...

Detoxification of Cyanide by Thiosulfate Sulfotransferase: Physiology and Mechanism

Did you know that cells can talk to one another? One cell can send a molecule over to another cell, and a receptor protein in the cell membrane will receive it, just like molecular walkie-talkies. Check it out!

Polarization: Theory and Example

It explains importance of Enzymes.

This video explains catalysts, exploring the concept of activation energy and how catalysts can lower it to speed up reactions. The video covers the use of catalysts in industry and domestic applications, including the catalytic...

Restriction Enzyme Set: 1. This clip introduces DNA-snipping restriction enzymes and takes a simplified look at how enzymes function.

Enzymes are really important proteins, that speed up the rates of reactions such as in photosynthesis, respiration and protein synthesis. The enzymes and substrates are always moving, and occasionally they collide at the right speed and...

What are enzymes? Why they're nature's little factory workers. They chop up certain things! They build up others! Pretty amazing the kind of chemistry nature can do given enormous polypeptide chains with unfathomable variability and...

Now that we know how drugs move through the body to reach their target, what happens once they get there? By what mechanisms can drugs interact with target proteins to elicit a particular cellular response, and by extension a...

Birmingham, Alabama, USA Natural Sound Duration: 1.44

A Shuttle payload specialist from the University of Alabama came back from a Space mission with protein crystals that are larger and more perfect than the ones on...