Biology Nervous Coordination AJK 2019
PMDC Verified Question 76 of 86
Impulses jump across synapse in the form of chemical messenger such as:
A
Glutamine
B
Arginine
C
Leucine
D
Dopamine
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option D: Dopamine
Concept:

Synaptic clefts are bridged by specialized neurochemical compounds.

Solution:

  • Dopamine is a major biogenic amine neurotransmitter in the central nervous system, heavily involved in motor control, reward pathways, and mood regulation. It carries the impulse chemically across the synapse.


Why other options are incorrect:

  • Glutamine, Arginine, Leucine: These are standard amino acids primarily used for protein synthesis or metabolic precursors, and are not classical neurotransmitters in this specific context (though Glutamine is a precursor to Glutamate, it is not the active messenger itself).

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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