Every living cell in the human body must have an energy supply. Cells take up glucose or a related chemical and break it down inside the mitochondria to produce ATP. ATP is the form of energy that cells use for their various activities. The breakdown of glucose occurs in the process of cellular respiration. A summary of this process is shown in the following equation (note that this is not a balanced equation):
C6H12O6 + O2 « CO2 + H2O + ATP
O2, which is a gas, is consumed in this process, and CO2, also a gas, is produced. Trace the pathway of a molecule of O2 from where it enters the human body, across any cell membranes it must pass, until it reaches a muscle cell in the right leg. Then, trace the pathway of a molecule of CO2 from inside that muscle cell, where it is produced in cellular respiration, until it leaves the body.

bru what tyep of qus is dis

d. planting trees

the trees take in carbon to make oxygen.

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.