Carbohydrates proteins lipids nucleic acids

NCERT Biology Class 11, Chapter 9

The ability of proteins to absorb ultraviolet light mainly depends on? NEET Biology MCQ

Last updated: July 30, 2026

Reviewed by MedQGo Editorial Team | Last updated: July 30, 2026

The ability of proteins to absorb ultraviolet light mainly depends on

Athe content of sulfur-containing amino acids
Bthe content of basic amino acids
Cthe content of aromatic amino acids
Dthe content of aliphatic amino acids

Correct answer: C. the content of aromatic amino acids

Aromatic amino acids, such as tryptophan and tyrosine, contain conjugated double bonds in their side chains. These conjugated systems allow proteins to absorb UV light effectively.

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