The percentage of oxygen in inhaled air by humans is approximately 21%. This oxygen is then absorbed by the lungs and transported by the blood to the cells where it is used for energy production in the body.
Oxygen makes up about 65% of the human body by mass.
Oxygen makes up about 21% of the Earth's atmosphere.
On average, the total lung capacity of an adult is around 6 liters of air. However, the actual amount of oxygen contained in the lungs at any given time is much less as not all the air inhaled is oxygen. The volume of oxygen in the lungs typically ranges from 2-3 liters.
On average, the human body is composed of about 65% oxygen by mass, primarily in the form of water (H2O) and other organic molecules. This oxygen is essential for cellular respiration, which is the process by which cells generate energy.
In cellular respiration, glucose is broken down to produce ATP, carbon dioxide, and water, not glucose and oxygen. Oxygen is consumed during cellular respiration to help produce ATP. The amount of glucose and oxygen produced in a human is not a measurable output since they are utilized within the body for energy production.
Inhaled air contains a greater volume of oxygen than carbon dioxide. Exhaled air is the opposite, since after the exchange of gases in the lungs the carbon dioxide in the blood is transferred into the lungs. Exhaled air contains a greater volume of carbon dioxide than oxygen. Also, there is more water vapour in exhaled air than inhaled air.
98% of the oxygen inhaled enters the blood. However, I do not know where the other 2% goes.
Oxygen makes up about 65% of the human body by mass.
4 liters of oxygen is 100% oxygen because the volume is entirely filled with oxygen.
pretty much all of the same gases that entered your lung when you inhaled, with the exception that there is much less oxygen and much more carbon dioxide
The brain only represents 2% of our total body weight. Interestingly, it consumes 25% of the body's oxygen.
A lot
Oxygen makes up about 21% of the Earth's atmosphere.
The percentage of oxygen in water, vapors or ice is the same.
Close to 21%, near 20.95%.
Approximately 20% of inhaled air is oxygen and approximately 15% of exhaled air is oxygen. I know that doesn't answer your question fully, but I hope it helps you gain a little more insight.
because without oxygen you cant breathe.