3. Based on the known mechanism of the enzyme glyceraldehyde-3-phosphate dehydrogenase, predict the outcome of the following situations or reactions. Include a brief justification of your answer for each ease. See page 519 of the text for the mechanism - Figure 14-7. (This is also in section 14.1) (1 pt) 3a. What effect would treating the enzyme first with one equivalent of iodoacetic acid (ICH2CO2H) followed by the substrate have on the outcome of the reaction catalyzed by this enzyme? Things to consider in answering this question: We have used iodoacetic acid before, how would what we know about it come into play in this situation? The labeling experiment should be straight forward, just follow the making and breaking of the bonds. 3b. Prediet the location of the 3H label when glyceraldehyde 3-phosphate is labeled with tritium (' H ) at Cl and reacted with the unmodified enzyme under physiological conditions