Which of the following statement is true regarding "Catecholamines"?
Synthesis of catecholamine is organ specific, so option A is correct.Production of catecholamine begins once tyrosine hydroxylase acts on tyrosine and forms DOPA so option B is wrong.All catecholamine are metabolized to vanillyl mandelic acid (VMA) which gets excreted in urine unchanged. VMA has neither glucogenic nor ketogenic fate. So option C is also wrong.Out of various catecholamine, only epinephrine has got one methyl group. Dopamine and norepinephrine do not contain any methyl group. So option D is also wrong.