What donates a sugar to the growing oligosaccharide chain of a glycoprotein?
A)a complex carbohydrate
B)a nucleotide peptide
C)a nucleotide sugar
D)a glycolipid

Question

Quizplus · Accepted Answer

Nucleotide sugars, such as UDP-glucose or GDP-mannose, donate specific sugars to the growing oligosaccharide chain of a glycoprotein during glycosylation. A complex carbohydrate is a general term for carbohydrates made up of multiple monosaccharides and does not specifically donate a sugar to a glycoprotein. A nucleotide peptide does not exist and is not involved in glycosylation. A glycolipid is a type of lipid and does not donate a sugar to a glycoprotein.

What Donates a Sugar to the Growing Oligosaccharide Chain of a Glycoprotein