Multiple choice

Amino acid contains both amine and carboxyl functional groups. Which of the following is an amino acid?

  1. Glutamine

  2. Glibenclamide

  3. Glycerol

  4. Glycogen

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A Correct answer
Explanation

Glutamine is one of the 20 amino acids encoded by the standard genetic code. It is not recognised as an essential amino acid but may become conditionally essential in certain situations, including intensive athletic training or certain gastrointestinal disorders.