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.
It is quite true that many DIY brides have this fear for their blooms not to die on them before they even have the chance to use the flowers for their specific purpose. In case you will also wonder how far in advance should I make my wedding bouquets, then you should know that these ones can be done with no more than 2 days prior to the wedding day. The thing is that these 2 days must suffice considering that there are many possibilities to preserve the freshness of your blooms for this special occasion.