Question

The term axonal transport refers to

A. the release of neurotransmitter molecules from the axon.

B. the transport of microtubules to the axon for structural support.

C. vesicle transport of proteins and organelles down the axon.

D. the movement of the axon terminal to synapse with a new postsynaptic cell.

E. None of the answers are correct.

Answer 1

The correct answer is 'C. vesicle transport of proteins and organelles down the axon,' which correctly defines axonal transport as the process of moving essential substances along the neuron's axon.

Step-by-step explanation:

Axonal transport refers to the movement of nutrients, organelles, and proteins down the axon of a neuron. This process is essential for the maintenance and function of the neuron. Microtubule motor proteins such as dynein and kinesin play a critical role in this process, transporting cargo such as vesicles, neurotransmitters, and other molecules along the axon. These substances are necessary for various cellular functions, including the communication between neurons at synapses.

Given the options provided, the correct answer to the question is:

• C. vesicle transport of proteins and organelles down the axon.

This selection accurately describes axonal transport as the vesicle transport of proteins and organelles along the axon, an essential process for neuron functionality and the propagation of nerve impulses.