Protein Secondary Structure MCQ

Test your knowledge with important Protein Secondary Structure MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Protein Secondary Structure MCQs at Bissoy

• Which of the following is a false statement?
  ক

  α-Keratin is α helical

  খ

  Collagen is α helical

  গ

  Hemoglobin has a quaternary structure

  ঘ

  α-Keratin is β pleated structure
• Secondary structure is defined by _________
  ক

  Hydrogen bonding

  খ

  Vander Waals forces

  গ

  Covalent bonding

  ঘ

  Ionic bonding
• Which of the statements is false about multiple sequence alignment?
  ক

  Both protein and nucleic acid secondary structures can be used

  খ

  More useful in RNA

  গ

  These alignments can be made more accurate by the inclusion of secondary structure information

  ঘ

  A significant increase in accuracy
• Which of the following is false about NMR spectroscopy?
  ক

  NMR is an abbreviated form of Nuclear Magnetic Resonance

  খ

  The intramolecular magnetic field around an atom in a molecule changes the resonance frequency giving structural information about the atom

  গ

  The intermolecular magnetic field around an atom in a molecule changes the resonance frequency giving structural information about the atom

  ঘ

  It is a technique that exploits magnetic properties of atomic nuclei
• Which of the following are known as helix breakers?
  ক

  Proline and glycine

  খ

  Isoleucine and leucine

  গ

  Valine

  ঘ

  Threonine
• A structure that has hydrogen bonds between polypeptide chains arranged side by side is?
  ক

  Primary structure

  খ

  α-helix

  গ

  β-pleated sheets

  ঘ

  Tertiary structure
• A coiled peptide chain held in place by hydrogen bonding between peptide bonds in the same chain is?
  ক

  Primary structure

  খ

  α-helix

  গ

  β-pleated sheets

  ঘ

  Tertiary structure
• β-pleated sheets are the examples of _________
  ক

  Primary structure

  খ

  Secondary structure

  গ

  Tertiary structure

  ঘ

  Quaternary structure
• Which of the following is not true about secondary protein structure?
  ক

  The hydrophilic/hydrophobic character of amino acid residues is important to secondary structure

  খ

  The ability of peptide bonds to form intramolecular hydrogen bonds is important to secondary structure

  গ

  The alpha helix, beta pleated sheet and beta turns are examples of protein secondary structure

  ঘ

  The steric influence of amino acid residues is important to secondary structure
• Which of the following does not affect the stability of an α-helix?
  ক

  Electrostatic repulsion

  খ

  Bulkiness

  গ

  Interaction between R groups spaced three residues apart

  ঘ

  Occurrence of alanine and glycine residues