These are the predecessor building blocks for neurotransmitters
A. Affinity
B. Synaptic vesicles
C. None of these are correct
D. Enzyme
E. precursor
Answer is: None of these are correct.
Neurotransmitter are mostly made up of Amino acids. Thus Amino acids are the main building blocks of neurotransmitter.
Amino acids can be made up of Amino acids ( example are GABA, glycine, glutamate etc).
Can be made up of amines (examples are noradrenaline, adrenaline, dopamine, serotonin and histamine).
Or can be made up of other molecules (like acetylcholine is made up of choline and acetyl coenzyme A, nitric oxide is another example).