The synthesis of new glycogen molecules are initiated by the homodimeric protein, _________, that catalyzes the addition of 8 glucose molecules to a tyronyl residue in the protein. Thus, glycogen molecules are actually a type of glycosylated protein
a) Glucogenin
b) Glycogenin
c) Amylogenin
d) Glycogen synthase
e) Branching enzyme

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Kristiania Kristiania · Answer 1 · 2019-08-20T07:46:34+02:00

Answer:

b) Glycogenin

Explanation:

Glycogenin

Glycogenin is a small pre - existing fragment glycogen , that acts as a primer or gycogenin to start the process of glycogen synthesis .

The Glycogenin accept the glucose from the UDP -Glc .

The Glycogenin has a tyrosine amino acid group , which have a hydroxyl group , on which the glucose unit is attached .

The first molecules of Glucose to Glycogenin is transfered by the nezyme Glycogen initiator synthase .

Then ,

The Glycogenin take the remaining residue of glucose to form a primer fragment which acts as a the acceptor of the remaining glucose molecules .