Q.1
Interactions between atoms within the protein chain are one of the main forces that stabilize covalent structures in Proteins.
  • a) True
  • b) False
Q.2
One of the Main Forces that stabilize covalent structures in proteins is the interaction between the protein and the ____________
  • a) Other protein
  • b) Cells around
  • c) Solvent
  • d) Cell debris around
Q.3
Salt Bridges is one of the Interactions stabilizing protein structure.
  • a) True
  • b) False
Q.4
What is the disulfide bond?
  • a) The ionic bond between S-S
  • b) Vander Waals interaction between two S atoms
  • c) The covalent bond between sulfur atoms on two cysteine amino acids
  • d) The covalent bond between any two sulfur atoms
Q.5
Which bond is weak and allow to be broken and reformed easily?
  • a) Disulfide bond
  • b) H bond
  • c) Hydrophobic interaction
  • d) Electrostatic bond
Q.6
H bond doesn’t allow structural change.
  • a) True
  • b) False
Q.7
Salt bridges are which kind of bonds?
  • a) Disulfide bond
  • b) H bond
  • c) Hydrophobic interaction
  • d) Electrostatic bond
Q.8
What is the strength of salt bridges?
  • a) 10-15 kcal/mol
  • b) 20-25 kcal/mol
  • c) 17-20 kcal/mol
  • d) 4-7 kcal/mol
Q.9
Hydrophobic interactions are attractive interactions, resulting from the inability of water to form hydrogen bonds with certain side chains.
  • a) True
  • b) False
Q.10
What is the name of attractions between polar or ionized R groups and water on the surface of the tertiary structure?
  • a) Disulfide bond
  • b) H bond
  • c) Hydrophilic interaction
  • d) Electrostatic bond
Q.11
Which of the bonds are between the polar side groups of amino acids?
  • a) Disulfide bond
  • b) Hydrogen bond
  • c) Hydrophobic interaction
  • d) Electrostatic bond
Q.12
What is the name of the links between sulfur atoms of two cysteine amino acids?
  • a) Disulfide bond
  • b) H bond
  • c) Hydrophobic interaction
  • d) Electrostatic bond
Q.13
What is the approximate strength of the interaction between atoms in a covalent bond?
  • a) 500 kJ/mol
  • b) 150 kJ/mol
  • c) 100 kJ/mol
  • d) 250 kJ/mol
Q.14
Which of the following of a protein molecule determines the strength of van der Waals force?
  • a) The molecular weight of the protein
  • b) PI of the protein
  • c) Number of amino acids present
  • d) The surface area of the molecule
Q.15
In secondary structure, the interactions of the R groups give a protein its specific three-dimensional tertiary structure.
  • a) True
  • b) False
0 h : 0 m : 1 s