Glycogenesis

Question 1

Step 1

Answer 1

Glucose + P gives glucose 6-P

Question 2

Step 2

Answer 2

Glucose-6-phosphate glucose-1-phosphate

phosphoglucomutase

Question 3

Step 3

Answer 3

Glucose-1-phosphate + UTP –> UDP-Glucose + PPi
(UDGP pyrophosphorylase)
UTP used in this reaction to activate glucose for addition to glycogen chain

Question 4

Step 4

Answer 4

UDP-Glucose + glycogen n(primer) –> Glycogen(n+1) + UDP
(Glycogen synthase[forms a 1,4 glycosidic bond)
Repeat preceding steps to further elongate chain

Question 5

Step 5

Answer 5

Linear glycogen can branch if branching enzyme is used (which forms an alpha 1,6 link)