What happens to the excess glucose in plants?

What happens if rat insulin injected? Does blood glucose drop,or glucagon released to keep level normal?

• Does pancreas secrete glucagon to break down glycogen stored in the liver to glucose to keep blood glucose level normal, or does the rat's blood glucose fall with hyperinsulinism. My two rats that were given insulin did not have a drop in blood glucose levels.

• Answer:

  blood glucose should drop. But it depends on when you give your rat insulin. If you gave your rat insulin when it's been feed like 2 hours ago then you notice that blood glucose drops but to a certain point then the rat's body signals for glucagon to be released to bring blood glucose back up to a certain range. I think what happened with your rats was that when you give it insulin, since your rat's blood glucose is already low then your rat's body signals thier pancreas to secrete more glucagon to bring glucose levels back up to a certain range. Remember your rat's body like any mammalian body wants to keep a constant level of blood glucose like with anything else (maintain homoestasis)