The following are true about the neurotransmitters:
a. acetylcholine is inactivated mainly by presynaptic reuptake
b. tyrosine is essential for the formation of dopamine
c. noradrenaline is inactivated mainly by hydrolysis
d. adrenaline is formed from methylation of the noradrenaline
a. acetylcholine is inactivated mainly by presynaptic reuptake
b. tyrosine is essential for the formation of dopamine
c. noradrenaline is inactivated mainly by hydrolysis
d. adrenaline is formed from methylation of the noradrenaline