Chapter 7
Catalyzed Product
Many bodies . . . have the property of exerting on other bodies an
action which is very different from chemical affinity. By means of
this action they produce decomposition in bodies, and form new
compounds into the composition of which they do not enter. This
new power, hitherto unknown, is common both in organic and
inorganic nature. I shall call it catalytic power. I shall also call
Catalysis the decomposition of bodies by this force.
(Berzelius, Edin. New Phil. Jrnl. XXI., 1836)
7.1 Catalyzed Product Model
In the previous chapter we have used the law of mass action to describe chemical
change of two substances interacting with each other and forming a product that is
chemically distinct from the two reactants. In this chapter we expand on that model
and deal with the case in which—after a series of reactions—one of the reactants
reemerges to enter the reaction anew. For example, some enzyme E may enter a
chemical reaction from which an intermediate product I results. This intermediate
product, in turn, may enter a reaction from which E is released in unchanged form
together with a new product F. An additional substance active in this process is the
substrate D, which is converted into the product F by action of the enzyme E.
Such catalyzed reactions are common in biological processes. One example
of these reactions is the production of fructose (F) from dextrose (D). In this
process, the enzyme (E) mechanically locks onto the substrate molecule, breaks it
into a new molecule, fructose, and is released again after the chemical reaction
occurred (see [1]).
A save-disabled version of STELLA and the computer models of this book are available at
www.iseesystems.com/modelingdynamicbiologicalsystems.
B. Hannon and M. Ruth, Modeling Dynamic Biological Systems,
Modeling Dynamic Systems, DOI 10.1007/978-3-319-05615-9_7,
© Springer International Publishing Switzerland 2014
69
Catalyzed Product
Many bodies . . . have the property of exerting on other bodies an
action which is very different from chemical affinity. By means of
this action they produce decomposition in bodies, and form new
compounds into the composition of which they do not enter. This
new power, hitherto unknown, is common both in organic and
inorganic nature. I shall call it catalytic power. I shall also call
Catalysis the decomposition of bodies by this force.
(Berzelius, Edin. New Phil. Jrnl. XXI., 1836)
7.1 Catalyzed Product Model
In the previous chapter we have used the law of mass action to describe chemical
change of two substances interacting with each other and forming a product that is
chemically distinct from the two reactants. In this chapter we expand on that model
and deal with the case in which—after a series of reactions—one of the reactants
reemerges to enter the reaction anew. For example, some enzyme E may enter a
chemical reaction from which an intermediate product I results. This intermediate
product, in turn, may enter a reaction from which E is released in unchanged form
together with a new product F. An additional substance active in this process is the
substrate D, which is converted into the product F by action of the enzyme E.
Such catalyzed reactions are common in biological processes. One example
of these reactions is the production of fructose (F) from dextrose (D). In this
process, the enzyme (E) mechanically locks onto the substrate molecule, breaks it
into a new molecule, fructose, and is released again after the chemical reaction
occurred (see [1]).
A save-disabled version of STELLA and the computer models of this book are available at
www.iseesystems.com/modelingdynamicbiologicalsystems.
B. Hannon and M. Ruth, Modeling Dynamic Biological Systems,
Modeling Dynamic Systems, DOI 10.1007/978-3-319-05615-9_7,
© Springer International Publishing Switzerland 2014
69