Amino Acids, Peptides & Proteins
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Questions and Answers

What is the basic structure of amino acids?

  • An acidic carboxyl group, a basic amino group, a hydrogen atom, and a distinctive side chain (correct)
  • A basic carboxyl group, an acidic amino group, a hydroxyl group, and a distinctive side chain
  • An acidic carboxyl group, a basic amino group, a hydroxyl group, and a distinctive side chain
  • A basic carboxyl group, an acidic amino group, a hydrogen atom, and a distinctive side chain

    • What gives rise to isomers in amino acids?

  • When the R group is H
  • When the alpha carbon is symmetric
  • When the alpha carbon is asymmetric
  • When the R group is not H (correct)

    • How many amino acids occur in nature?

  • About 500
  • About 20
  • About 300 (correct)
  • About 100

    • What type of amino acids exhibit optical activity?

    <p>Amino acids with an asymmetric carbon atom (Chiral carbon)</p> Signup and view all the answers

    What type of bond links amino acids in proteins?

    <p>&quot;Peptide bond&quot;</p> Signup and view all the answers

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