Question

______is a part of a neuron where information is acquired.
A)Dendrite
B)Axon
C)Nephron
D)Medulla

Answer 1

Specialized cells which are present in the nervous system and are responsible for sending information/signals to other nerve cells, gland cells or muscles are known as neurons.

Complete answer:
Let us first understand what is a neuron and then find the correct answer. So, a neuron is the fundamental unit of the nervous system and the brain. A neuron has various parts,
1)Axon
2)Dendrite
3)Schwann cells
4)Nucleus

The neuron receives sensory signals from the external surrounding and motor signals are sent to the muscles to take an action.

Option a: The branched portion of neuron is known as dendrites. They are very thin fibres originating away from the soma. They get narrowers towards the tips. Dendrites are responsible for propagating electrochemical signals received by the nerve cell to the soma, i.e. the cell body. Therefore, this is the correct option.

Option b: Axon is thin and cylindrical like the portion of the neuron which is responsible for conducting the electrochemical signals away from the neuron. Thus, this is the incorrect option.

Option c: Nephron is a part of the kidney and not the neuron. Thus, this is the incorrect option.

Option d: Medulla is a part of nephron which in turn is a part of the kidney and not the neuron. Thus, this is the incorrect option.

Hence, the correct answer is option (A)

Note: One easy way of solving this question is, by seeing the option one can eliminate nephrons and medulla immediately as they are not a part of the neuron. Now, one must remember that it is dendrite that acquires information to neurons whereas, the axon transmits the information away from neurons.