Question

Cysteine and methionine are

• A. sulphur containing proteins
• B. sulphur containing amino acids
• C. enzymes
• D. disaccharides

Answer 1

The correct option is B sulphur containing amino acids

Cysteine and methionine are sulphur containing amino acids. Amino acids get linked to one another by peptide bond formation and form a polypeptide chain of proteins. Hence cysteine and methionine are found in several proteins.
Disaccharides are carbohydrates made up of two units of sugar.
Enzymes are biocatalysts that are commonly proteinaceous and accelerate the speed of reaction without undergoing any change in themselves.