Amino acids
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Questions and Answers

What are amino acids?

  • Organic compounds with both acidic carboxyl and basic amino groups (correct)
  • Organic compounds with neither acidic carboxyl nor basic amino groups
  • Organic compounds with basic amino groups
  • Organic compounds with acidic carboxyl groups

Which of the following is NOT a physical characteristic used to characterize amino acids?

  • The dissociation constant of the various titratable groups
  • The molecular weight (correct)
  • The isoelectric point
  • Optical rotation

What are amino acids?

  • Organic compounds with both acidic carboxyl and basic amino groups (correct)
  • Organic compounds with neither acidic carboxyl nor basic amino groups
  • Organic compounds with basic amino groups
  • Organic compounds with acidic carboxyl groups

Which of the following is NOT a physical characteristic used to characterize amino acids?

<p>The molecular weight (B)</p> Signup and view all the answers

How many amino acids are the building blocks for proteins?

<p>Approximately 20 (D)</p> Signup and view all the answers

How many amino acids are the building blocks for proteins?

<p>20 (C)</p> Signup and view all the answers

How many amino acids are the building blocks for proteins?

<p>20 (C)</p> Signup and view all the answers

How many amino acids are the building blocks for proteins?

<p>Approximately 20 (D)</p> Signup and view all the answers

What is the function of amino acids in living organisms?

<p>To form polypeptides (C)</p> Signup and view all the answers

What is the function of amino acids in living organisms?

<p>To form polypeptides (C)</p> Signup and view all the answers

Why must cells be able to synthesize certain amino acids?

<p>To obtain essential amino acids that cannot be obtained from the environment (C)</p> Signup and view all the answers

Why must cells be able to synthesize certain amino acids?

<p>To obtain essential amino acids that cannot be obtained from the environment (C)</p> Signup and view all the answers

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