Protein Structure and Amino Acids Quiz
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Questions and Answers

What is the primary determinant of a protein's structure?

  • Interaction of multiple polypeptide chains
  • Hydrogen bonding of the peptide backbone
  • 3D folding pattern of the protein
  • Sequence of amino acids (correct)

    • What causes denaturation (unfolding) of proteins?

  • Chemical digestion in the stomach
  • Bases and salts
  • Alteration in the primary structure
  • Heat, acids, and mechanical agitation (correct)

    • Which type of protein typically consists of more than 50 amino acids linked together?

  • Peptides
  • Tripeptides
  • Polypeptides
  • Proteins (correct)

    • What hormone stimulates the release of HCl in the stomach to denature proteins?

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

    What is the role of cholecystokinin (CCK) in the small intestine?

    <p>Stimulates digestion and acts as a hunger suppressant</p> Signup and view all the answers

    How are amino acids transported from the small intestines to the liver?

    <p>Active transport via the Hepatic Portal Vein</p> Signup and view all the answers

    What happens to amino acids in the liver?

    <p>Converted into glucose or fat through gluconeogenesis</p> Signup and view all the answers

    Which hormones can alter protein synthesis?

    <p>Growth hormone and cortisol</p> Signup and view all the answers

    What is the function of pancreatic proteases in the small intestine?

    <p>Digest peptides into tripeptides and dipeptides</p> Signup and view all the answers

    What is the main role of protein turnover in the body?

    <p>To recycle amino acids for building new proteins</p> Signup and view all the answers

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