<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>In living cells, chemical reactions that help sustain life and allow cells to grow.</n0:def-definition><n0:def-source>NCI-GLOSS</n0:def-source></n0:ComplexDefinition>
<n0:ComplexDefinition xmlns:n0="http://ncicb.nci.nih.gov/xml/owl/EVS/ComplexProperties.xsd#"><n0:def-definition>A chemical process, typically mediated by an enzyme, in which one or more substances (a substrate) are transformed by covalent modification into another substance(s) (a product) or in which the state of a substance is transformed.</n0:def-definition><n0:def-source>NCI</n0:def-source></n0:ComplexDefinition>