Page 134 - Miracles Within the Molecule
P. 134

HArun yahya


                    Melanın: Another Color-Producıng Molecule
                    Melanin mol e cu les are held togeth er by the bonds that form the
               car o tene mol e cu les. By means of these bonds, mel a nin is able to absorb
               all the wave lengths of light that strike it, which is why an object con tain -
               ing mel a nin appears dark. Melanin mol e cu les bond to pro tein mol e cu -
               les and accu mu late in gran ules whose col ors vary from yel low to
               brown, and even black. These gran ules impart their col ors to our skin
               and hair, which may be brown or black, depend ing on how the mol e cu -
               les accu mu late in the gran ules.
                    Melanin is also a com po nent of the cha me leon's color-chang ing
               mech a nism: The mol e cule is car ried by chan nels inside the skin, where
               it cov ers up bright er pig ments in the lower lay ers. Animals like the octo -
               pus, which can swift ly dark en its col ors, also make use of this mol e cule,
               and in the same man ner. Color chan ges take place in their bod ies as a
               result of the spread ing of mel a nin gran ules. When the mel a nin gran ules
               clus ter togeth er once more, the color of the skin light ens.
                    When fruit goes rot ten, mel a nin of dif fer ent kinds also forms. The
               decay ing fruit's cell walls become dam aged, and these mem branes
               cause an enzyme called phe nol ox i dase to go into action with in the cell.
               This enzyme is not found in lemons, mel ons or toma toes. However, the
               brown ing that accom pa nies decay in fruit such as peach es is the result
               of mel a nin mol e cu les. Melanin is also the mol e cule respon si ble for the
               dark color of tea.  61
                                               Do not assume, on the basis of the
                                          infor ma tion pro vid ed above, that the mel -
                                          a nin mol e cule alone is respon si ble for pro -
                                          duc ing col ors. It not only imparts color,
                                          but also pro tects against ultra vi o let rays
                                          and vis i ble light. By way of mel a nin, your
                                          skin is pro tect ed against harm ful and solar
                                          rays. Were it not for this pig ment, your
                                          skin would soon red den and blis ter from





                                              132
   129   130   131   132   133   134   135   136   137   138   139