Final answer:
Excess glucose from a high-carbohydrate diet is stored as glycogen in liver and muscle cells, or as fat in adipose tissue for later use as energy reserves.
Step-by-step explanation:
When the diet supplies more carbohydrate than needed, the excess glucose will be stored for later use as glycogen in the liver and muscle cells, or as fat in adipose tissue. Excess carbohydrate is first used by the liver to synthesize glycogen, and when the glycogen stores are full, the additional glucose is converted into fatty acids. These fatty acids are then stored in adipose tissue cells to be used as energy reserves.