Much of this movement is to regulate the contents of the cell. This includes bringing material into the cell from the extracellular environment or the plasma membrane (endocytosis) or releasing material made within the the cell to the outside (exocytosis).
It really is an easy project...it just takes a little time. All and all, it took me about 6-8 total hours to make 4 bouquets, 10 bouts (my mom made those though) and about 15 centerpieces. I made two bouquets the day before our wedding and the other two the day of the wedding.
We recommend that most flowers be scheduled to be delivered 2-3 days prior to an event. All flowers are harvested just prior to delivery. Delicate flowers such as Lily of the Valley, Gardenias, and Stephanotis are best when delivered 1-2 days before the event.