Denaturation of Proteins and Nucleic Acids
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Questions and Answers

What is the importance of denaturation in DNA replication or transcription process?

  • It partially 'opens' the DNA, allowing replication or transcription to proceed (correct)
  • It helps in the polymerization of amino acids
  • It enhances the expression of neurotransmitters in the brain
  • It increases the synthesis of non-essential amino acids

What is the role of denaturation in the human body's defense against pathogens?

  • It aids in the digestion of proteins
  • It promotes the expression of essential amino acids
  • It helps in the synthesis of neurotransmitters
  • It is used to kill pathogens through pH regulation and biochemical secretions (correct)

What is the significance of denaturation in food digestion?

  • It plays a role in the expression of essential amino acids
  • It helps in the synthesis of neurotransmitters
  • It increases the synthesis of non-essential amino acids
  • It aids in the denaturation of proteins by digestive enzymes (correct)

What is the primary function of the anticodon arm in tRNA?

<p>Base pairing with the codon of the mRNA (C)</p> Signup and view all the answers

What is the application of denaturation in a polymerase chain reaction?

<p>It is used to produce several in vitro copies of DNA quickly (A)</p> Signup and view all the answers

What is the role of denaturation in the medical field?

<p>It is used to kill bacteria, viruses, and other diseased cells (A)</p> Signup and view all the answers

What is the result of protein hydrolysis?

<p>Breakdown of proteins into free amino acids (B)</p> Signup and view all the answers

What is the role of the ribosome in cells?

<p>Protein synthesis (D)</p> Signup and view all the answers

What is the significance of denaturation in laboratory research?

<p>It is a favored process in a polymerase chain reaction (D)</p> Signup and view all the answers

What is the consequence of protein denaturation?

<p>Loss of biological function (B)</p> Signup and view all the answers

What is the term for the tRNA that holds the growing polypeptide chain?

<p>Peptidyl-tRNA (C)</p> Signup and view all the answers

What is the purpose of amino acid analysis in protein hydrolysis?

<p>To determine the amino acid composition and concentration of proteins (B)</p> Signup and view all the answers

What is the result of a protein being exposed to a denaturant?

<p>Its structure is altered resulting in the loss of its innate biological activity and function (B)</p> Signup and view all the answers

Which of the following can cause denaturation of DNA?

<p>Exposure to heat (B)</p> Signup and view all the answers

What is the effect of violent whipping or shaking on protein structure?

<p>It disrupts hydrogen bonds and causes the protein to denature (D)</p> Signup and view all the answers

What is the purpose of denaturation in cellular processes?

<p>To regulate DNA processes (D)</p> Signup and view all the answers

What is the effect of reducing agents on protein structure?

<p>They reduce disulfide linkages to produce –SH groups (C)</p> Signup and view all the answers

What is the mode of action of salts of heavy metals as denaturants?

<p>They disrupt hydrogen bonds and salt bridges (D)</p> Signup and view all the answers

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