Video 1: Enzyme video from class
Video 2: Enzymes 
                            However he is using substrate as both a reactants (what going into a chemical 
                            reaction) and how we talked about substrate in class (the definition you need to 
                            know). We call a substrate the object that is going into an enzyme that is going to be 
                            broken apart by (Hydrolysis) or put together by Dehydration Synthesis. 
Hydrolysis & Dehydration Synthesis
