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.
When to send wedding thank-you cards: For gifts received during the engagement party and shower, send a thank you within two to three weeks of the festivities; for gifts sent before the wedding date, send a card as soon as possible but definitely before the wedding; for gifts given on the wedding day itself, mail a thank-you note within three months; and for gifts received after your wedding, send one within two to three weeks.