Asked in PMC Practice Test 15 (2021) 2021Moderate

_ conducts nerve impulse in the brain.

Correct answer: A. Serotonin

  • A. Serotonin
  • B. Aspartame
  • C. Ascorbic acid
  • D. Hydrazine

Explanation

Serotonin is a compound that conducts nerve impulses in the brain. It contains 68.2%C,6.86%H,15.9%N, and 9.08%O . Its molar mass is 176 g/mol.

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About Neurons and Nerve Impulse

Neurons receive and transmit information through dendrites, the cell body and axons. The topic explains resting potential, depolarization, repolarization, refractory periods and saltatory conduction, followed by synaptic transmission through neurotransmitters. An action potential is distinct from the graded potential produced at a receptor.

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