Enzymes are proteins which are manufactured by the human body during the process of protein synthesis. Enzymes are catalysts and drive every chemical reaction that takes place in the human body and enable our bodies to be built from proteins, carbohydrates, and fats. Enzymes are highly specific in their activity and form an enzyme-substrate complex speeding up processes as they lower the activation energy during a given reaction period. Through genetic engineering and by isolating specific enzymes, it has become possible to harness the power of enzymes. The isolation of the enzyme, polymerase, from Themus aquaticus has enormously facilitated the process of polymerase chain reaction (PCR) which enables researchers to produce millions of copies of a specific DNA sequence. Science has however; more recently made immense progress in the manufacturing of synthetic and therapeutic enzymes. *CC