question_answer 30)

    In a neuron, conversion of electrical signal to a chemical signal occur satin (a) cell body                       (b) axonal end                   (c) dendritic end               (d) axon

Answer:

                  (b) At the axonal end, the electrical impulse releases small amount of chemical substance (i.e., acetylcholine) into the synapse. This chemical substance crosses the gap and starts a electrical impulse in the dendrite of next neuron.