<?xml version="1.0" encoding="UTF-8"?>
<sbml name="MyModel" xmlns="http://www.sbml.org/sbml/level3">
  <listOfModules>
    <module id="A">
      <listOfSpecies>
        <!-- NOTE THAT UNITS ARE NOT DEFINED => BUILT-IN  -->
        <species id="MEK" compartment="cell" initialConcentration="1e-5"/>
        <species id="MEKPP" compartment="cell" initialConcentration="1e-5"/>
      </listOfSpecies>
      <listOfParameters>
        <parameter id="Vmax" />
        <parameter id="Km" />
      </listOfParameters>
      <listOfReactions>
        <listOfReactants>
          <speciesReference species="MEK"/> 
        </listOfReactants>
        <listOfProducts>
          <speciesReference species="MEKPP" />
        </listOfProducts>
        <kineticLaw>
<!--         ... Vmax * MEK /(Km + MEK) * cell      -->
        </kineticLaw>
      </listOfReactions>
    </module>
  </listOfModules>
</sbml>
