Which statement about fructosamine is true?

Which statement about fructosamine is true?

• A. It is a lipid
• B. It is a nucleic acid
• C. It is a protein to which glucose binds
• D. It is a carbohydrate

Answer: (C)

Fructosamine represents glycated proteins formed when glucose nonenzymatically attaches to amino groups on serum proteins, usually albumin. This makes it a protein that has glucose bound to it, not a lipid, nucleic acid, or free carbohydrate. Clinically, the fructosamine level reflects average blood glucose over roughly 1–3 weeks (shorter than HbA1c), helping monitor diabetic control in the nearer term. The other options don’t fit because fructosamine is not a lipid or a nucleic acid, and while it involves glucose, it’s the modification of a protein, not a carbohydrate itself.

Fructosamine represents glycated proteins formed when glucose nonenzymatically attaches to amino groups on serum proteins, usually albumin. This makes it a protein that has glucose bound to it, not a lipid, nucleic acid, or free carbohydrate. Clinically, the fructosamine level reflects average blood glucose over roughly 1–3 weeks (shorter than HbA1c), helping monitor diabetic control in the nearer term. The other options don’t fit because fructosamine is not a lipid or a nucleic acid, and while it involves glucose, it’s the modification of a protein, not a carbohydrate itself.