Biology Nervous Coordination ETEA 2019
PMDC Verified Question 72 of 86
____ is considered as chief structural and functional unit of nervous system.
A
Cell
B
Neuron
C
Nephron
D
Brain
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option B: Neuron
Concept:

Every organ system is built upon a foundational cellular unit that performs its primary functions.

Solution:

  • The neuron (or nerve cell) is the core component of the nervous system, uniquely specialized for generating, propagating, and transmitting electrochemical impulses.


Why other options are incorrect:

  • Nephron: The structural and functional unit of the kidney.


  • Brain: The central processing organ, not the microscopic foundational unit.


  • Cell: Too generic; many cells (like glia) support the nervous system but do not transmit primary impulses.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

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