Which of the following compounds is responsible for coordinated regulation of glucose and glycogen metabolism?

Q. Which of the following compounds is responsible for coordinated regulation of glucose and glycogen metabolism?
A. NAD+
B. Fructose 2,6 bisphosphate
C. Acetyl-CoA
D. Fructose 1,6 bisphosphate
Answer: Fructose 2,6 bisphosphate