Protein Tertiary Structures

Multiple Choice

Protein tertiary structures

A) require the formation of disulfide bonds in order to achieve their native state.
B) are always irreversibly destroyed by the addition of denaturants, such as urea and salts, even when the denaturants are subsequently removed.
C) are often disrupted by the either very low pH or very high pH values as a result of alterations in the ionization states of acidic or basic amino acids.
D) are generally poorly defined and cannot be determined experimentally.