Question

Which of the following is NOT one of the chemical classes into which neurotransmitters fall?

O amino acids
O peptides
O chlorides
O gases and lipids

Answer 1

Chlorides do not fall under the chemical classes of neurotransmitters which include amino acids, peptides, biogenic amines, and gases and lipids. Chlorides are ions, not neurotransmitters. A newly discovered hormone with four amino acids would be classified as a peptide. Therefore correct option is C

Step-by-step explanation:

The chemical class into which neurotransmitters do not fall is chlorides. Neurotransmitters are typically categorized into several classes based on their chemical structure and function. The major classes include amino acids, peptides, biogenic amines (which are derived from amino acids but no longer have carboxyl groups), and gases and lipids. Amino acids, such as glutamate, GABA, and glycine, are critical for neurotransmission and have their own specific systems and receptors. Chlorides, however, are simple ions and not complex organic molecules that can act as neurotransmitters.

For the newly discovered hormone containing four amino acids linked together, it would fall under the chemical class of peptides, as it comprises short chains of amino acids.