Final answer:
Insulin stimulates glucose uptake in both liver and muscle cells. Liver acts as a glucose reservoir, while muscle cells primarily store glucose as glycogen for exercise.
Step-by-step explanation:
Glucose uptake in the liver and muscle cells is regulated by the hormone insulin. Insulin stimulates the absorption of glucose by liver hepatocytes, as well as by adipose and muscle cells. In the liver, glucose is either used for immediate energy needs or converted into glycogen for storage.
In muscle cells, glucose is also taken up and used for immediate energy needs. However, unlike liver cells, muscle cells have the ability to store glucose as glycogen for use during vigorous exercise.
Overall, the main difference between glucose uptake in the liver and muscle is the storage capacity. The liver acts as a glucose reservoir, releasing glucose into the bloodstream when needed, while muscle cells primarily use glucose for immediate energy needs and store it as glycogen for exercise.