The cell wall is a structural layer surrounding cells

Deoxyribose is a component of DNA

Glycogen is the storage form of glucose. Glycogen is great when it comes to storing energy because it is non-polar. This means that it is insoluble so it will not cause the cells to swell an burst. It is also folded into a compact shape so you can fit many glycogen molecules in the space.

Lactose is composed of glucose and galactose.

The glucose from glycogen is readily mobilized so it is used when doing strenuous activity. Glycogen also maintains the blood-glucose levels which is important due to the fact that this is the only energy used by the brain, except during prolonged starvation.

Dextran is a group made up of glucose polymers

When glucose is consumed, it is a carbohydrate but when digested, it turns into glucose which is a simple sugar. Glucose can be easily absorbed into the blood, therefore it is an instant energy source.