Carleen 880 Views May 29, 2016, 06:19:07 PM Question Solved Share Tweet What is an enzyme? What is the general mechanism describing enzyme catalysis? What will be an ideal response? Emelina May 29, 2016, 06:23:15 PM #1 Answer An enzyme is essentially a biological catalyst. The "lock and key" model of enzyme activity is discussed in the text where the catalyst binds a substrate in a very specific location and orientation. Once the enzyme-substrate complex is formed, the product is produced and free enzyme is regenerated. Bridgett May 29, 2016, 06:30:31 PM #2 Very useful!