Question

question 19 (4 points) (02.05 hc) runners only have enough stored atp in their muscle cells to run for about five seconds. which answer correctly explains how the runners body adjusts to the longer distance, for example, a marathon (42.1 km)? a the runners body will convert stored fat molecules into energy. b the runners body will create the needed energy by breaking down proteins. c the runners body will supply the needed energy by producing starch. d the runners body will produce the energy by activating the golgi apparatus.

Explanation:

During long - distance running like a marathon, when the initial stored ATP is depleted, the body uses stored fat molecules as an energy source. Proteins are not the main source of energy during normal endurance exercise. Starch is a plant - based carbohydrate and not produced by the human body for energy supply. The Golgi apparatus is mainly involved in modifying, sorting, and packaging proteins and lipids, not energy production.

Answer:

A. The runner's body will convert stored fat molecules into energy