Which of the following correctly describes how concentrations of the following substances in the body change during intense, prolonged exercise?

the amount of atp increases.

the amount of adp decreases.

the amount of glucose decreases.

the amount of lactic acid decreases.

The correct option is C) The amount of glucose decreases.

Explanation:

During exercise, our body starts utilizing sugar which is stored in the liver and muscles. To rebuild these stores of sugar, sugar is drawn from the circulating blood. Hence, the amount of sugar will decrease during intense, prolonged exercises.

Other options like option A are false because the amount of ATP will also start to decline during exercise as more ATP would be utilized by the muscle cells to carry out the workout.

hypoxemia refers to a below usual concentration of oxygen in the blood, mainly in the arteries. hypoxemia is an indication of an issue associated with circulation or breathing and may lead to various symptoms like shortness of breath.  

the condition is identified by determining the level of oxygen in the blood sample obtained from an artery. it can also be predicted by determining the oxygen saturation of the blood with the application of a pulse oximeter.  

the normal arterial oxygen is about 75 to 100 mm hg. the values underneath 60 mm hg is generally considered with the requirement for supplemental oxygen. the normal pulse oximeter readings generally range between 95 to 100 percent. the values under 90 percent are regarded as low.  

in the given case, the oxygen saturation is measured at 93 percent, hence, there is no need to administer oxygen, that is, one should withhold oxygen.