Multiple choice

Neurotransmitters allow the transmission of signals from one neuron to the next across synapses. Which among the following is not a neurotransmitter?

  1. Epinephrine

  2. Norepinephrine

  3. Melanin

  4. Dopamine

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Melanin is a pigment that is ubiquitous in nature, being found in most organisms. In animals melanin pigments are derivatives of the amino acid tyrosine.