Final answer:
Glycogen storage diseases are classified as metabolic disorders caused by inherited issues with glycogen storage and mobilization, leading to an abnormal glycogen buildup in various tissues such as the liver and muscles.
Step-by-step explanation:
Glycogen storage diseases (GSDs) are known as metabolic disorders. These inherited conditions are defined by issues with the storage and mobilization of glycogen in the body, leading to the deposition of abnormal glycogen forms. The liver, heart, skeletal muscles, and nervous system are among the most affected tissues. For instance, Glycogen storage disease type-II is characterized by progressive muscle weakness and myopathy due to glycogen accumulation.
It is important to distinguish that GSDs are not considered lysosomal storage diseases, neurological disorders, or mitochondrial diseases. These terms refer to different categories of conditions that affect various biological systems and processes. For example, lysosomal storage diseases are related to defects in lysosomal function, which is not the primary issue in GSDs. Similarly, mitochondrial diseases pertain to conditions where cellular respiration, particularly the production of energy in cells, is compromised, which is also distinct from the glycogen metabolism issues in GSDs.