Question

Axon is characterized by:
A. Transformation of energy
B. Receiving the impulse
C. Providing energy for impulse
D. Conduction of impulse

Answer 1

Hint: Our body maintains homeostasis in order to work properly. For this purpose, different organs present in our body should work in a coordinated manner to give the desired output. Thus, coordination is the process by which different organs interact with each other and aids in the functioning of one another.

Step by step answer:The neural system of our body is a network of nerve to nerve connections that cause a quick response in our body. This system is made of numerous specialized cells called neurons that receive, transmit, and can detect the signals generated by the body.
A neuron is the structural and functional unit of the neural system. It is basically composed of three parts called the cell body, dendrites, and axons. The cell body contains the cytoplasm and other cell organelles and some granular bodies called Nissl's granules. The short fibers which branch out repeatedly and project out of the cell body are called dendrites. These also contain Nissl’s granules. Dendrites are responsible for the transmission of impulses towards the cell body. The axon is the long fiber whose one end is branched with bulb-like endings. This bulb-like ending is called a synaptic knob. This knob contains the synaptic vesicles having chemicals known as neurotransmitters. The axons are involved in the transmission of nerve impulses away from the cell body to the synaptic region.
Therefore, the correct answer is option D- conduction of impulse.

Note: The membranes of neurons are polarized from that is why these are easily excitable. The neural membranes contain numerous ion channels on them which are selectively permeable i.e. they allow the transport of certain ions only. The conduction of nerve impulse involves the movement of potassium and sodium ions.