Wednesday, December 28, 2016

Enzymes and the Type of Reactions they Catalyze ( Part 1 : OXIDOREDUCTASES)

Guys the post is quite long. So I thought to break it into 6 different parts. This post will cover Oxidoreductases.

There are 5 main types of Enzymes in this category. As the name suggests, two of them are Oxidases and Reductases. The other ones are Dehydrogenases, Oxygenases and Peroxidases.


  • Oxidases --> Oxidizes a substrate
  • Reductases --> Reduces a substrate
  • Dehydrogenases --> A double bond is introduced to the substrate, by removal of two H atoms. The H are accepted by a Coenzyme.
  • Oxygenase --> Directly incorporates Oxygen into the substrate
  • Peroxidase --> Uses Hydrogen Peroxide H2O2 as an electrone acceptor

Question? Yes! Removal of Hydrogen and adding of Oxygen are also considered a type of Oxidation because it increases the oxidation number of the substrate! Pre-Med Organic Chemistry anyone? ;)

See you soon with the other categories guys!

Jay :)

P.S. - Don't confuse Dehydrogenase with Dehydratase!!! We go through that here:)

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