ATP WHY ATP?
   maybe a frozen accident of
         biochemical evolution -
   i.e., biochemical chance.

   it was a property of the
   earliest organisms that has
   been passed on by heredity
   which become so deeply
   embedded in the constitution
   of all living cells that it
   is unlikely to be changed?
bases

                                                                                         Concept Activities - chapter 8.3 - The Structure of ATP*