Question

39. An increase glycogen synthase activity would contribute to _______________.

A. An increase in blood glucose levels

B. A decrease in blood glucose

C. An increase in glucose storage as polymers

D. B & C

E. A & C

Answer 1

D. B and C

When the blood concentration in blood is high and is more than what is required by the body, the body begins to store this glucose. Glucose is a simple sugar and it’s not stable for storage as it is highly reactive to the enzymes which are in abundant in the body. So this should be stored in a complex form stable enough for storage. The glucose is so converted into glucose6-phosphate, glucose1-phosphate and UDP-glucose in a three step process with the help of some enzymes. This UDP-glucose is converted into glycogen by glycogen synthase enzyme. Glycogen is a polymer molecule.

As glycogen synthase is converting blood glucose into glycogen, it reduces blood glucose and increase its storage as polymers(glycogen).

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