Protein Quaternary Structure
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Questions and Answers

What is the result of disrupting the secondary, tertiary, and quaternary structure of a protein?

  • The protein becomes a random coil (correct)
  • The protein becomes more stable
  • The protein becomes more rigid
  • The protein becomes more soluble

Which environmental factor can disrupt the secondary, tertiary, and quaternary structure of a protein?

  • Decreased temperature and pH
  • Increased temperature and pH (correct)
  • Exposure to water
  • Addition of hydrophobic molecules

What happens to a protein when it loses its higher-order structure due to denaturation?

  • It loses its three-dimensional structure (correct)
  • It gains stability
  • It becomes more resistant to denaturation
  • It becomes more compact

What type of conditions are required to non-enzymatically hydrolyze the bonds of proteins?

<p>Prolonged exposure to a strong acid or base at elevated temperatures (C)</p> Signup and view all the answers

What is the main factor that determines the unique three-dimensional structure of each polypeptide?

<p>Amino acid sequence (A)</p> Signup and view all the answers

Which type of interaction is NOT involved in stabilizing the tertiary structures of proteins?

<p>Van der Waals forces (B)</p> Signup and view all the answers

What effect does denaturation have on the primary structure of a protein?

<p>It causes the amino acid sequence to change (C)</p> Signup and view all the answers

Which condition is NOT capable of breaking peptide bonds in proteins?

<p>Denaturation (A)</p> Signup and view all the answers

How does denaturation impact the tertiary structure of a protein?

<p>It alters the three-dimensional folding of the protein (D)</p> Signup and view all the answers

Which level of protein structure is primarily affected by denaturation?

<p>Tertiary structure (A)</p> Signup and view all the answers

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