Biochemistry Protein Secondary Structure Online Exam Quiz
Biochemistry Protein Secondary Structure GK Quiz. Question and Answers related to Biochemistry Protein Secondary Structure. MCQ (Multiple Choice Questions with answers about Biochemistry Protein Secondary Structure
Which of the following does not affect the stability of an ?-helix?
Options
A : Electrostatic repulsion
B : Bulkiness
C : Interaction between R groups spaced three residues apart
D : Occurrence of alanine and glycine residues
Secondary structure is defined by _________
Options
A : Hydrogen bonding
B : Vander Waals forces
C : Covalent bonding
D : Ionic bonding
Which of the following is false about NMR spectroscopy?
Options
A : NMR is an abbreviated form of Nuclear Magnetic Resonance
B : The intramolecular magnetic field around an atom in a molecule changes the resonance frequency giving structural information about the atom
C : The intermolecular magnetic field around an atom in a molecule changes the resonance frequency giving structural information about the atom
D : It is a technique that exploits magnetic properties of atomic nuclei
?-pleated sheets are the examples of _________
Options
A : Primary structure
B : Secondary structure
C : Tertiary structure
D : Quaternary structure
A coiled peptide chain held in place by hydrogen bonding between peptide bonds in the same chain is?
Options
A : Primary structure
B : ?-helix
C : ?-pleated sheets
D : Tertiary structure
A structure that has hydrogen bonds between polypeptide chains arranged side by side is?
Options
A : Primary structure
B : ?-helix
C : ?-pleated sheets
D : Tertiary structure
Which of the following are known as helix breakers?
Options
A : Proline and glycine
B : Isoleucine and leucine
C : Valine
D : Threonine
Which of the following is a false statement?
Options
A : ?-Keratin is ? helical
B : Collagen is ? helical
C : Hemoglobin has a quaternary structure
D : ?-Keratin is ? pleated structure
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