1. Name the energy system that produces CO2 and water as a waste product. 2. What is formed by glycogenolysis? 3. What is the function of insulin?

1. The energy system that produces CO2 and water as waste products is **aerobic respiration**. This system utilizes oxygen to break down glucose (and other fuels) completely, maximizing ATP production.<br /><br />2. Glycogenolysis is the breakdown of glycogen into **glucose**.<br /><br />3. Insulin facilitates the uptake of glucose from the bloodstream into cells, primarily in the liver, muscle, and adipose (fat) tissue. This effectively **lowers blood glucose levels**. It also promotes glycogen synthesis (storage of glucose as glycogen) and inhibits gluconeogenesis (production of glucose from non-carbohydrate sources).<br />