Oxygen, but most of the oxygen you take in will probably get breathed out again, depending on wether or not you are exercising, and how hard you are exercising.
it's not much of an elaboration, if that's what you were going for, but I tried.
Blood cells exchange carbon dioxide for oxygen. Neither is actually "air", as such.
Blood cells exchange carbon dioxide for oxygen. Neither is actually "air", as such.
Blood cells exchange carbon dioxide for oxygen. Neither is actually "air", as such.
Its in alveoli of lungs
The red blood cells pick up oxygen from the air that is inhaled into the lungs. When the red cells pick up the oxygen from the air, they expel carbon dioxide into the lungs to be exhaled.
The air sacs send oxygen to the cells.
Capillaries in your lungs provide oxygen to the haemoglobin molecules of red blood cells.
Air, lungs, blood, cells, and cellular respirationair, lungs, bloods, cells, cellular respiration
The red blood cells pick it up from the air and take it through the blood stream to the cells in the body.
In the lungs, oxygen from the air diffuses into the bloodstream through the alveoli, tiny air sacs in the lungs. This oxygen binds to hemoglobin in red blood cells, which is then transported by the blood to cells throughout the body for cellular respiration, where oxygen is used to produce energy.
The lungs are the primary organs that fill blood with oxygen. Oxygen from the air is inhaled into the lungs, where it moves into the bloodstream through tiny blood vessels called capillaries surrounding the lungs' air sacs.
Air, lungs, blood, cells, and cellular respirationair, lungs, bloods, cells, cellular respiration