Can take up and store a lot of glucose and uses a lot of glucose during exercise.

polysaccharide glycogen

Explanation:

stores a lot of energy, animals store chains of glucose in it

Liver

Explanation:

Glucose is mainly stored in the liver and is considered one of the most important storage systems for glucose.

Since the liver is so large, it uses up to 10% of its volume to store glucose.

Because we exercise so much during our sports or workouts we need to use energy to move faster and keep going, the liberal releases glucose to help keep you from feeling tired during your workouts and when you are feeling tired from the workout that means you have exhausted the supply and why eat after the workout.