Protein Denaturation in Biology
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Questions and Answers

What gives each protein its unique structure and function?

  • The number of hydrogen atoms in the molecule
  • The color of the molecule
  • The specific number and order of amino acids (correct)
  • The type of carbonyl group attached
  • Which level of protein molecular structure refers to the specific number and order of amino acids in the protein chain?

  • Secondary structure
  • Quaternary structure
  • Tertiary structure
  • Primary structure (correct)
  • What is the main function of actin and tubulin proteins within the cell?

  • Providing structural support to the cell (correct)
  • Sending messages between cells
  • Transporting oxygen in the body
  • Carrying out metabolic reactions
  • What is the irreversible process that occurs when a protein loses its shape and structure?

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

    Which type of protein structure involves the bonding of subunits within a protein from multiple polypeptide chains?

    <p>Quaternary Structure</p> Signup and view all the answers

    Why are proteins considered organic molecules?

    <p>Because they contain carbon atoms</p> Signup and view all the answers

    What is the primary role of chaperone proteins in the folding of a protein?

    <p>Encourage proper folding and assist in maintaining correct shape</p> Signup and view all the answers

    What is one consequence of protein denaturation?

    <p>The protein loses its function and ability to bind to substrates</p> Signup and view all the answers

    In sickle cell anemia, what change in the amino acid sequence leads to the abnormal shape of red blood cells?

    <p>Substituting a hydrophilic amino acid with a hydrophobic amino acid</p> Signup and view all the answers

    What is the main function of microtubule strands in the cell?

    <p>Transport of materials</p> Signup and view all the answers

    Which protein molecule acts as a receptor protein binding to the hormone estrogen and also acts as a transcription factor?

    <p>Estrogen receptor</p> Signup and view all the answers

    What is the role of p53 protein in the cell?

    <p>Protect against DNA damage</p> Signup and view all the answers

    Which protein molecule helps link neighboring cells together and promotes tissue structure?

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

    What is the main function of the enzyme acetylcholinesterase in muscle cells?

    <p>Break down acetylcholine</p> Signup and view all the answers

    Which protein molecule aids in restoring the natural membrane potential of neurons and allows for neuron communication?

    <p>Sodium-potassium pump</p> Signup and view all the answers

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