Where is glucose stored when body glucose exceeds current needs?

Where is glucose stored when body glucose exceeds current needs?

• A. Liver
• B. Brain
• C. Muscles
• D. Blood

Answer: (A)

When glucose is abundant, the body stores it mainly as glycogen in the liver. Hepatocytes take up the excess glucose and convert it into glycogen through glycogenesis, acting as the body’s central glucose buffer to keep blood sugar levels steady between meals. The liver’s storage helps supply glucose to all tissues when needed. Muscles also store glycogen, but its storage is for the muscle’s own use during activity and isn’t released to raise blood glucose. The brain relies on a steady supply but does not serve as a storage depot, and blood is a transport medium, not a storage reservoir. So the liver is the primary site for storing excess glucose.

When glucose is abundant, the body stores it mainly as glycogen in the liver. Hepatocytes take up the excess glucose and convert it into glycogen through glycogenesis, acting as the body’s central glucose buffer to keep blood sugar levels steady between meals. The liver’s storage helps supply glucose to all tissues when needed. Muscles also store glycogen, but its storage is for the muscle’s own use during activity and isn’t released to raise blood glucose. The brain relies on a steady supply but does not serve as a storage depot, and blood is a transport medium, not a storage reservoir. So the liver is the primary site for storing excess glucose.