FPGEE for NABP 2025 – 400 Free Practice Questions to Pass the Exam

Glycogen is primarily stored in the liver, where it serves as an essential energy reserve. The liver can release glucose into the bloodstream when needed, helping to maintain blood sugar levels, especially between meals or during periods of fasting. Glycogen in the liver can be mobilized quickly, making it vital for managing energy demands of the body.

While other tissues, such as muscle cells, also store glycogen, the liver is unique in its capability to convert glycogen back into glucose for distribution throughout the body. This function is critical in maintaining homeostasis and ensuring that vital organs, including the brain, receive an adequate supply of glucose. The heart and pancreas play different roles in metabolism, with the heart utilizing fatty acids for energy and the pancreas producing hormones like insulin and glucagon that regulate glucose metabolism. The skin is not involved in storage of glycogen; instead, it primarily serves as a protective barrier and plays a role in thermoregulation.