Before a Marathon, Many Athletes "Carb Load" to Increase Their

Multiple Choice

Before a marathon, many athletes "carb load" to increase their endurance. The excess of carbohydrates they consume is stored in the body until it is needed to create ATP. Which of the following most accurately describes the process of "carb loading"?

A) Extra carbohydrates are stored as triglycerides in the adipose tissue until they are converted back to glucose to create ATP.
B) Extra carbohydrates are stored as glycogen in the muscle and liver and converted to ATP during the exercise.
C) Extra carbohydrates are metabolized to proteins and stored in the muscle, and later converted to glucose to create ATP.
D) Extra carbohydrates are stored as lactic acid until they are converted back to glucose and used to create ATP.