The term scalawag was originally used as far back as the 1840s to describe a farm animal of little value; it later came to refer to a worthless person. For opponents of Reconstruction, scalawags were even lower on the scale of humanity than carpetbaggers, as they were viewed as traitors to the South.
Enzymes speed up reactions by lowering the activation energy of the reaction concerned. The enzyme creates a lower energy pathway than if the enzyme wasn't there. For example, â¦ hydrogen peroxide, H2O2, decomposes when it gets warmer to H2O(l) and O2(g).
Thus we can see the key to how enzymes operate: Enzymes accelerate reactions by decreasing the activation energy. The combination of substrate and enzyme creates a reaction pathway whose transition state is lower than that of the reaction in the absence of the enzyme.