Carb loading (eating lots of carbohydrates) is a common practice among marathon and triathlon runners. how does carb loading increase a runner’s endurance on a cellular level? select two choices to support your answer the cellular respiration process slows down to allow the muscles to store the needed energy the mitochondria in the muscles generate energy through cellular respiration cells can perform cellular respiration without input from other organs or organ systems heat provided by the run give the body energy to make atp the lungs support cellular respiration by providing oxygen needed to produce atp from the carbohydrates

By carb loading the glucose stored as glycogen can be used to derive energy which increases a runner’s endurance. Two choices that support the answer are  

Mitochondria in the muscles generate energy through cellular respiration.  

Lungs support cellular respiration by providing the oxygen needed to produce ATP from carbohydrates.

Explanation:

Carb loading is the process of increasing the content of carbohydrate in the diet to acquire energy for athletic activities. Excess glucose in the body is stored as glycogen in the liver as well as muscles. During high endurance physical activities the glycogen in the muscles is used to derive energy.  

The glycogen gets converted to ATP by the process of cellular respiration. The mitochondria in the muscle cells perform the process of generating energy. The glycogen in liver is released into the blood stream when needed so as to maintain blood sugar levels. But the glycogen in muscles is used for giving energy to perform physical activities.  

the energy generated by an individual's metabolism is calculated in met (metabolic equivalent of task). the met is the ratio of the work metabolic rate to the resting metabolic rate. one met is illustrated as 1 kcal per kilogram per hour, and is probably equal to the energy cost of sitting quietly.

1 met is equal to 1.162 watt per kg

1 kg is equal to 1000 grams

as the person weighs 80000 gm, that is, 80 kg.

therefore, 80*1.162 = 92.96

thus, the person expends 92.96 watts of power while at rest.