Neurotransmitters bind to which are protein structures on the surface of the neuron cell membrane.
a. neural receptors
b. cell bodies
c. impulse docks
d. axon terminals

Neurotransmitters bind to neural receptors, which are protein structures on the surface of the neuron cell membrane. Correct A

The neural receptors are small molecules which receive signals  and convert the stimulus into action potentials or graded potentials. These nerve endings can be hormones outside the cell or second messengers inside the cell.

proteins is the answer