20 Questions
Which amino acid disrupts the α-helix due to its imino group being incompatible with the right-handed spiral?
Proline
What is the structure formed when polypeptide chains line up side by side to form sheets of molecules?
β-pleated sheet
What is the major force stabilizing the helical structure of proteins?
Hydrogen bonds
Which interaction type results from negatively charged carboxyl groups interacting with positively charged groups, such as the ε-amino of lysine?
Ionic bond
What refers to how protein subunits interact with each other and arrange to form one macromolecule?
Quaternary structure
Which structure is defined as the sequence of amino acids in a protein?
Primary structure
Which hormone causes the contraction of the smooth muscles of the uterus?
Oxytocin
Which protein structure results from hydrogen bonds between repeating constituents of the polypeptide backbone?
Tertiary structure
What is the chemically named tripeptide that functions as an antioxidant?
Glutathione (GSH)
Which hormone causes constriction of peripheral blood vessels leading to a rise in blood pressure?
Vasopressin
Which type of structure results from hydrogen bonds between repeating constituents of the polypeptide backbone?
Secondary structure
What is the chemically named tripeptide that functions as an antioxidant?
Glutathione (GSH)
What hormone causes constriction of peripheral blood vessels leading to a rise in blood pressure?
Vasopressin
Which amino acid disrupts the α-helix due to its imino group being incompatible with the right-handed spiral?
Proline
What is the sequence of amino acids in a protein called?
Primary structure
What is the major force stabilizing the helical structure of proteins?
Hydrogen bonds
Which amino acid disrupts the α-helix due to its imino group being incompatible with the right-handed spiral?
Proline
What structure results from hydrogen bonds between repeating constituents of the polypeptide backbone?
β-pleated sheet
Which type of interactions result from negatively charged carboxyl groups interacting with positively charged groups, such as the ε-amino of lysine?
Ionic interactions
What refers to the overall three-dimensional shape of an entire protein molecule?
Tertiary structure
Test your knowledge of biologically active oligopeptides in protein chemistry with this quiz. Learn about the functions and properties of peptides like Glutathione (GSH), Oxytocin, and Vasopressin.
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