The absorption spectrum of proteins has a peak at around 28 nm due to
A) the peptide bonds.
B) hydrogen bonding.
C) disulfide bridges
D) aromatic amino acids.
E) serine and threonine.

Question

Quizplus · Accepted Answer

The peak at around 280 nm in the absorption spectrum of proteins is due to the presence of aromatic amino acids, such as tryptophan, tyrosine, and phenylalanine, which have strong absorption at this wavelength.

The Absorption Spectrum of Proteins Has a Peak at Around