Podcast
Questions and Answers
Which amino acid disrupts the α-helix due to its imino group being incompatible with the right-handed spiral?
Which amino acid disrupts the α-helix due to its imino group being incompatible with the right-handed spiral?
- Isoleucine
- Tryptophan
- Proline (correct)
- Valine
What is the structure formed when polypeptide chains line up side by side to form sheets of molecules?
What is the structure formed when polypeptide chains line up side by side to form sheets of molecules?
- β-pleated sheet (correct)
- Collagen helix
- α-helix
- Coiled-coil structure
What is the major force stabilizing the helical structure of proteins?
What is the major force stabilizing the helical structure of proteins?
- Ionic interactions
- Hydrophobic interactions
- Covalent cross-linkages
- Hydrogen bonds (correct)
Which interaction type results from negatively charged carboxyl groups interacting with positively charged groups, such as the ε-amino of lysine?
Which interaction type results from negatively charged carboxyl groups interacting with positively charged groups, such as the ε-amino of lysine?
What refers to how protein subunits interact with each other and arrange to form one macromolecule?
What refers to how protein subunits interact with each other and arrange to form one macromolecule?
Which structure is defined as the sequence of amino acids in a protein?
Which structure is defined as the sequence of amino acids in a protein?
Which hormone causes the contraction of the smooth muscles of the uterus?
Which hormone causes the contraction of the smooth muscles of the uterus?
Which protein structure results from hydrogen bonds between repeating constituents of the polypeptide backbone?
Which protein structure results from hydrogen bonds between repeating constituents of the polypeptide backbone?
What is the chemically named tripeptide that functions as an antioxidant?
What is the chemically named tripeptide that functions as an antioxidant?
Which hormone causes constriction of peripheral blood vessels leading to a rise in blood pressure?
Which hormone causes constriction of peripheral blood vessels leading to a rise in blood pressure?
Which type of structure results from hydrogen bonds between repeating constituents of the polypeptide backbone?
Which type of structure results from hydrogen bonds between repeating constituents of the polypeptide backbone?
What is the chemically named tripeptide that functions as an antioxidant?
What is the chemically named tripeptide that functions as an antioxidant?
What hormone causes constriction of peripheral blood vessels leading to a rise in blood pressure?
What hormone causes constriction of peripheral blood vessels leading to a rise in blood pressure?
Which amino acid disrupts the α-helix due to its imino group being incompatible with the right-handed spiral?
Which amino acid disrupts the α-helix due to its imino group being incompatible with the right-handed spiral?
What is the sequence of amino acids in a protein called?
What is the sequence of amino acids in a protein called?
What is the major force stabilizing the helical structure of proteins?
What is the major force stabilizing the helical structure of proteins?
Which amino acid disrupts the α-helix due to its imino group being incompatible with the right-handed spiral?
Which amino acid disrupts the α-helix due to its imino group being incompatible with the right-handed spiral?
What structure results from hydrogen bonds between repeating constituents of the polypeptide backbone?
What structure results from hydrogen bonds between repeating constituents of the polypeptide backbone?
Which type of interactions result from negatively charged carboxyl groups interacting with positively charged groups, such as the ε-amino of lysine?
Which type of interactions result from negatively charged carboxyl groups interacting with positively charged groups, such as the ε-amino of lysine?
What refers to the overall three-dimensional shape of an entire protein molecule?
What refers to the overall three-dimensional shape of an entire protein molecule?
