Biochemistry- Quiz 2 Review
Questions and Answers 2025-2026
Updated 2025-2026 Updated.
____ refers to the spatial arrangement and interactions of subunits in a multi-subunit (multi-
chain) structure - Answer Quaternary structure
_____: Alpha helices, beta sheets, and turns are examples of this type of structure - Answer
Secondary structure
According to convention, the ____ terminus is drawn on the left side of a peptide - Answer
Amino
___: This amino acid residue disrupts the alpha helix because its side chain contains a unique
ring structure that restricts bond rotations - Answer Proline
Changes in protein folding can lead to ____ diseases - Answer Prion
Which of the following would be included in the proteome - Answer Individual proteins in
their native state, proteins that are in complexes with other proteins, proteins that have been
cleaved off other proteins, and proteins that have been modified from their original state
Why is the peptide bond planar? - Answer Because of its partial double-bond character
Is Glycine an L- or D-amino acid? - Answer Neither
What is the advantage of adding SDS to gel electrophoresis - Answer SDS allows proteins to be
separated on the basis of approximate mass
Which of the following folding states of a protein would have the most entropy - Answer
Unfolded state
The simplest sort of quaternary structure is a - Answer Dimer
Questions and Answers 2025-2026
Updated 2025-2026 Updated.
____ refers to the spatial arrangement and interactions of subunits in a multi-subunit (multi-
chain) structure - Answer Quaternary structure
_____: Alpha helices, beta sheets, and turns are examples of this type of structure - Answer
Secondary structure
According to convention, the ____ terminus is drawn on the left side of a peptide - Answer
Amino
___: This amino acid residue disrupts the alpha helix because its side chain contains a unique
ring structure that restricts bond rotations - Answer Proline
Changes in protein folding can lead to ____ diseases - Answer Prion
Which of the following would be included in the proteome - Answer Individual proteins in
their native state, proteins that are in complexes with other proteins, proteins that have been
cleaved off other proteins, and proteins that have been modified from their original state
Why is the peptide bond planar? - Answer Because of its partial double-bond character
Is Glycine an L- or D-amino acid? - Answer Neither
What is the advantage of adding SDS to gel electrophoresis - Answer SDS allows proteins to be
separated on the basis of approximate mass
Which of the following folding states of a protein would have the most entropy - Answer
Unfolded state
The simplest sort of quaternary structure is a - Answer Dimer
