Biology Nervous Coordination PMC 2020
PMDC Verified Question 69 of 86
Which one of the following is common to all neurons?
A
A cell body which contains a nucleus
B
Presence of node of Ranvier
C
A thick myelin sheath
D
Presence of Schwann cells
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: A cell body which contains a nucleus
Concept:

Neurons come in many morphological classifications (unipolar, bipolar, multipolar), but they share fundamental cellular necessities.

Solution:

  • Regardless of type, every functional neuron must have a soma (cell body) containing a nucleus to direct protein synthesis and maintain cellular metabolism.


Why other options are incorrect:

  • Nodes of Ranvier, Myelin Sheath, Schwann Cells: These are characteristic of myelinated neurons only. Unmyelinated neurons lack these structures entirely.

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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