Question

Neurotransmitters are usually produced in the cell body of a neuron and secreted at the axon terminal. How do

these chemical messengers get from the cell body to the distal end of the axon?
a. They are packaged in vesicles that get pulled by motor proteins (e.g., kinesin) along
microtubules.
b. They are passed along a long line of transport proteins.
c. They are pushed through the centers of microtubules.
d. They diffuse down the axon due to a concentration gradient.
e. They are attached to a "conveyor belt" of actin strands that move toward the axon terminal.

Answer 1

Neurotransmitters are transported from the cell body to the axon terminal by vesicles pulled along microtubules by motor proteins.

Step-by-step explanation:

Neurotransmitters are usually produced in the cell body of a neuron and secreted at the axon terminal. To answer the question of how these chemical messengers get from the cell body to the distal end of the axon: They are packaged in vesicles that get pulled by motor proteins (e.g., kinesin) along microtubules.

When a nerve impulse reaches the end of an axon, the axon releases chemicals called neurotransmitters. These neurotransmitters travel across the synapse between the axon and the dendrite of the next neuron, binding to the membrane of the dendrite and allowing the nerve impulse to travel through the receiving neuron.