When electrophoretic separations are done based on molecular weight, the distance that a molecule moves can be graphed as a straight line when compared to: None of these O the negative of the molecular weight of the proteins the log of the molecular weight of the proteins O The molecular weight of the proteins O MW /2 In the active site of chymotrypsin Histidine 57 acts as: D in chlorination reactions Da phosphorylation activator in disulfide bond formations O in acid-base reactions Oin zymogen reactions