Because enzymes are not part of the product, they can be reused again and again. How efficient! Enzyme activity measures how fast an enzyme can change a substrate into a product. Changes in ...

Redox enzymes are proteins that catalyze oxidation-reduction reactions, which involve the transfer of electrons between ...

This is shown in the graph below. In the graph above, as the pH increases so does the rate of enzyme activity. An optimum activity is reached at the enzyme’s optimum pH, pH 8 in this example.