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

The two choices that support my answer are

B The Mitocondria in the muscles generate through cellular respiration.

E The lungs support cellular respiration by providing need to produce ATP from the carbohydrates

Explanation:

Eating lots or carbohydrate or carb loading leads to  increase the rate of aerobic respiration in various cells such as liver,muscle that generate energy in form of ATP and the excess energy is being stored. This excess stored energy helps to maintain healthy body physiology among marathon runners .

During the Catabolism of carbohydrates in aerobic condition oxygen is very much essential.Oxygen is brought into cell by the normal physiologic functioning of lungs.In presence of oxygen carbohydrates are broken down by various metabolic pathways such as glycolysis to generate ATP .