13 Questions
What is the predominant factor in protein stability?
Hydrophobic effect
Which statement regarding protein structure is true?
Hydrophobic side chains are in the interior of the native protein
Why is there so little allowable rotation in the peptide bond?
The partial double bond character makes the peptide bond planar
The α helix is
Stabilized by amino acid R groups
The β sheet
Is primarily stabilized by hydrogen bonds
Which is the more stable Beta sheet: parallel or antiparallel?
Antiparallel due to more linear hydrogen bonds
Which statement regarding the tertiary structure of proteins is false?
Many proteins can be classified as either globular or fibrous, but not both
Denaturing followed by renaturing of a protein:
Demonstrates that primary structure dictates tertiary structure
What are the four main types of macromolecules?
Nucleic acids, proteins, carbohydrates, lipids
Which weak interaction is responsible for the formation of secondary protein structures like alpha helix and beta sheet?
H-bonding
What is the primary function of myoglobin?
Storing oxygen in muscle cells
Which factor contributes to the Bohr effect in hemoglobin?
Decrease in pH
What type of bond links amino acids together in a protein?
Peptide bond
Test your knowledge on macromolecules such as nucleic acids, proteins, carbohydrates, and lipids, as well as the first and second laws of thermodynamics, weak interactions, water structure, buffers, amino acid structure, and protein structure.
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