Enzymes are proteins that function as chemical catalysts and speed up metabolic reactions in living organisms.
The activation of enzymes is the process of converting an inactive enzyme molecule into a metabolically active molecule.
The enzyme molecule can be activated by activators such as ions, cofactors such as coenzymes, or by the conversion of a proenzyme into an active molecule.
Activators are molecules that bind to enzyme molecules and boost their metabolic activity.
An example of such an activator is fructose-2,6-bisphosphate which activates the phosphofructokinase 1 enzyme that promotes glycolysis.