The carboxylate anions of ________ amino acids are important neurotransmitters.
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Proline
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Glutamine
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Glutamic acid
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Cysteine
C
Correct answer
Explanation
Glutamic acid is one of the 20 proteinogenic amino acids, and its codons are GAA and GAG. It is a non-essential amino acid. The carboxylate anions and salts of glutamic acid are known as glutamates. In neuroscience, glutamate is an important neurotransmitter that plays a key role in long-term potentiation and is important for learning and memory.