Page 108 - Miracles Within the Molecule
P. 108

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                    The Atoms Comprısıng Glucose Are Sometımes
                    Bonded ın Dıfferent Ways
                    Glucose may take the form of dif fer ent sugar mol e cu les by bond -
               ing dif fer ent ly. One of these is fruc tose, the fruit sugar wide ly found in
                                    fruit and veg e ta bles, and the mol e cule that gives
                                        fruit its sweet taste. Fructose is also the main
                                           sugar sub stance in honey, because the
                                             flow ers from which bees gath er nec tar
                                              are all sour ces of fruc tose. This mol e -
                                               cule also has anoth er impor tant prop -
                                               er ty: It's the sugar that gives sperm
                                               cells the ener gy to move along their
                                               long and mirac u lous jour ney.  45
                                                    Another    sugar   molecule—
                                                sucrose, emer ges when glu cose and
                                               fruc tose com bine togeth er. Sucrose is
                                              the pow dered sugar you use in daily
                                             life, and is par tic u lar ly found in sugar
                                           cane and sugar beets. Sucrose also con sti -
                                          tutes the struc tur al ele ment in starch and
                                        cel lu lose, found also in all plants. That
                                        Sucrose, an impor tant prod uct of pho to syn -
                                       the sis, appears as a com pound in leaves and is
                                      trans mit ted to all other regions of the plant.
                                     Due to its own molec u lar prop er ties, sucrose is
                                     trans mit ted to the fur thest roots and leaves with -
                                    out  under go ing  any  struc tur al  chan ges. 46
                                   Nourishment can thus eas i ly reach any point in
                                   the plant.











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