<P> After a meal has been digested and glucose levels begin to fall , insulin secretion is reduced , and glycogen synthesis stops . When it is needed for energy , glycogen is broken down and converted again to glucose . Glycogen phosphorylase is the primary enzyme of glycogen breakdown . For the next 8 -- 12 hours , glucose derived from liver glycogen is the primary source of blood glucose used by the rest of the body for fuel . </P>
<P> After a meal has been digested and glucose levels begin to fall , insulin secretion is reduced , and glycogen synthesis stops . When it is needed for energy , glycogen is broken down and converted again to glucose . Glycogen phosphorylase is the primary enzyme of glycogen breakdown . For the next 8 -- 12 hours , glucose derived from liver glycogen is the primary source of blood glucose used by the rest of the body for fuel . </P>
when would glycogen need to be converted back to glucose
when would glycogen need to be converted back to glucose
for energy
for energy