Shown here is a graph illustrating daty fiom the original Pulse Chase experiment analyzing protein secreticn in pancreabic acinar cells. Trace B corresponds to tadioactivity in which structure? Endosomes Secretory vesicles Rough ER Gelgi complex Smooth ER QUESTION 10 Pancreasc achar cels were selected for the original original Pulse Chaso experimem of De Palade and his colle agues because aimost al of the proteins they produce are: Similar Hormones Enzmes Secreted.