The activity of enzymes that act on these molecules can be measured using a spectrophotometric method involving tautomerase and enol borate complexes. Along with AGMO and nitric oxide synthase, tetrahydrobiopterin acts as a cofactor for hydroxylases that act on these molecules. (15[1])A pathway (15[1])that synthesizes these molecules uses DAHP synthase to regulate carbon. (15[1])These molecules are produced in a pathway in which (*) chorismate (-5[1])mutase performs a (10[1])Claisen (10[1])rearrangement to synthesize prephenate. (-5[1])One test detects the presence of these molecules by reacting them with nitric acid and looking (-5[1])for a yellow color. (10[1])These molecules characteristically absorb ultraviolet light at 280 nanometers. (10[1]-5[1])Along with folates, (10[1]-5[1])the shikimate (10[1]-5[1])pathway produces these molecules (-5[1])detected (10[1])in the xanthoproteic test. For 10 points, name these molecules that include phenylalanine (10[1]-5[1])and tryptophan (10[1]-5[1])and (-5[1])have a (-5[1])ringed (10[1])side chain. (10[1])■END■ (10[6]0[7])