Biology Nervous Coordination MDCAT 2018
PMDC Verified Question 80 of 86
In nervous system, chemical messengers are called
A
Enzymes
B
Chemoreceptors
C
Neurotransmitters
D
Hormones
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: Neurotransmitters
Concept:

Chemical signaling depends on the system utilized (Nervous vs. Endocrine).

Solution:

  • In the nervous system, the highly specific endogenous chemicals that transmit signals across a synaptic cleft from one neuron to another target cell are specifically called neurotransmitters.


Why other options are incorrect:

  • Hormones: Chemical messengers of the endocrine system that travel via the bloodstream.


  • Enzymes: Biological catalysts, not signaling messengers.


  • Chemoreceptors: The sensory structures that detect chemicals.

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.

Previous Question All Nervous Coordination MCQs Next Question

Want to solve full-length papers under timed exam conditions?

Practice with zero-scroll lockdown sprints, dynamic latency zone timers, live peer selection telemetry, and the automated Amber mistake recovery loop.

Enter Arena Sprint iOS App Android App