Final answer:
Carbohydrates are broken down into glucose and serve as the primary energy source in the body. Fats are broken down into fatty acids and glycerol for energy production.
Step-by-step explanation:
Carbohydrates and fats undergo breakdown in the body to release energy. When carbohydrates are digested, they are broken down into glucose, which is the primary energy source for the body. Glucose can be used immediately or stored for later use in the liver and muscles. Fats are broken down into fatty acids and glycerol through a process called lipolysis, and these components are then used for energy production.