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Phenylalanine and Tyrosine Metabolism Quiz
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Phenylalanine and Tyrosine Metabolism Quiz

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Questions and Answers

Which amino acid is considered essential and must be ingested through diet?

  • Tryptophan
  • Phenylalanine (correct)
  • Tyrosine
  • Asparagine
  • Which amino acid is encoded by the codons UUU and UUC?

  • Asparagine
  • Phenylalanine (correct)
  • Tyrosine
  • Tryptophan
  • Which artificial sweetener produces phenylalanine as one of its metabolites?

  • Stevia
  • Saccharin
  • Sucralose
  • Aspartame (correct)
  • Which amino acid is an aromatic amino acid containing the benzene ring?

    <p>Phenylalanine</p> Signup and view all the answers

    Which amino acid is nutritionally semiessential?

    <p>Cysteine</p> Signup and view all the answers

    Which amino acid is commonly found in eggs, chicken, liver, beef, milk, and soybeans?

    <p>Phenylalanine</p> Signup and view all the answers

    Which amino acid is a precursor for the neurotransmitter dopamine?

    <p>Tyrosine</p> Signup and view all the answers

    Which amino acid is considered nutritionally semiessential, synthesized at rates inadequate to support growth?

    <p>Tyrosine</p> Signup and view all the answers

    Which amino acid is essential and must be obtained through the diet as it is not synthesized de novo in humans?

    <p>Phenylalanine</p> Signup and view all the answers

    Which artificial sweetener produces phenylalanine as one of its metabolites?

    <p>Aspartame</p> Signup and view all the answers

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