Can glycogen act like a hormone?

Answer 1

Glycogen is a storage form of glucose and is not by any definition a hormone.
Perhaps you mean glucagon which, with insulin, regulates glucose levels in the blood.

Glycogen is a ready energy source and stored mostly in the liver as a very large molecule with a protein core.

A core protein of glycogenin is surrounded by branches of glucose units. The entire globular granule may contain around 30,000 glucose units.

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Answer 2

Luna Cruz

Glycogen itself does not act like a hormone. However, hormones can influence glycogen metabolism. For example, insulin promotes glycogen synthesis, while glucagon and epinephrine stimulate glycogen breakdown.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.