Question

Glycogen plays an important role in regulating blood sugar. When glucose levels in blood are low, glycogen is broken down by the body to provide glucose. In the muscles, glycogen is also broken down to release energy to help with muscle contraction.
)) What are the functions of glycogen? Select all that apply.
Animals store excess sugar as glycogen.
Glycogen provides structural support for cell walls.
Glycogen can be broken down to release glucose and increase blood sugar.
Energy from glycogen can be used for muscle contraction.

Answer 1

Correct answers:
- Animals store excess sugar as glycogen.
- Glycogen can be broken down to release glucose and increase blood sugar.
- Energy from glycogen can be used for muscle contraction.

Explanation: glycogen is an animal polysaccharide used for short‑term energy storage in liver and muscle. It is not a structural component of cell walls (that role is filled by cellulose in plants).