Catalysis is the increase in the rate of a chemical reaction due to the participation of an additional substance called a catalyst.
A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.
An electron acceptor is a chemical entity that accepts electrons transferred to it from another compound.
Enzymes are macromolecular biological catalysts.
In biochemistry, an oxidoreductase is an enzyme that catalyzes the transfer of electrons from one molecule, the reductant, also called the electron donor, to another, the oxidant, also called the electron acceptor.
Products are the species formed from chemical reactions.
In chemistry, a substrate is typically the chemical species being observed in a chemical reaction, which reacts with reagent to generate a product.