Cell Respiratio2

Cell Respiratio2 - Elimination Reactions and Isomerization...

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Cell Respiration: Introduction Types of Metabolic Reactions Oxidation and Reduction Reactions There are a number of different types of metabolic reactions that typically take place. One class of reactions that will be mentioned a lot in this guide are oxidation and reduction reactions. These reactions involve the gain and loss of electrons and often also involve the cleavage of carbon-hydrogen bonds. When they are favorable, such reactions yield a large amount of free energy. In order to understand the specifics of what occurs in these reactions, a strong chemistry background is necessary. Here, it will suffice to understand that an oxidation reaction involves the loss of electrons (which corresponds to the breaking of bonds) and that a reduction reaction involves a gain of electrons (corresponding to a making of bonds).
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Unformatted text preview: Elimination Reactions and Isomerization Reactions Another class of reactions are elimination reactions. These involve the elimination of atoms from a molecule and result in the formation of carbon- carbon double bonds. Molecules that can be eliminated include, among others, water, ammonia, and hydroxyls. Isomerization reactions involve intramolecular shifting of hydrogen atoms. The products of an isomerization reaction have the same atomic components but are found in a different conformation. Again, these descriptions of metabolic reactions are just simple introductions so that we can use them in our discussion of glycolysis and the citric acid cycle. The specifics of these reactions use organic chemistry that is not covered here...
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