The given table shows the percentage of oxygen gas in inspired and expired air.Oxygen inInspired Air (%) Expired Air (%)21.0 16.4The difference in the percentage of oxygen gas is due to itsA. storage in lung tissues.B. non-reactivity with the blood.C. liberation as a metabolic waste.D. utilisation in energy production
Question
The given table shows the percentage of oxygen gas in inspired and expired air.Oxygen inInspired Air (%) Expired Air (%)21.0 16.4The difference in the percentage of oxygen gas is due to itsA. storage in lung tissues.B. non-reactivity with the blood.C. liberation as a metabolic waste.D. utilisation in energy production
Solution
The difference in the percentage of oxygen gas in inspired and expired air is due to its utilisation in energy production. When we inhale, we take in air that contains 21% oxygen. This oxygen is used by our body cells to produce energy in a process called cellular respiration. During this process, oxygen is used to break down glucose, producing energy, carbon dioxide, and water. The carbon dioxide is then exhaled, along with the remaining oxygen that was not used in the process. This is why the percentage of oxygen in the expired air is lower, at 16.4%.
Similar Questions
21% of inhaled air is oxygen. Identify how much oxygen there is in exhaled air.<1%4%17%78%I'm not sure
The Atmospheric Oxygen at 1.9 billion years ago, was percent that of the modern level. A- 10% B- 15% C- 70% D- 50%
Calculate the mass percentage of oxygen in dry air.Express your answer with the appropriate units.
Volume of air inspired or expired with each normal breath is known as :Inspiratory capacityTotal Lung capacityTidal volumeResidual volume
To calculate VO2 and VCO2, it is necessary to know the fraction of oxygen and carbon dioxide in the inspired and expired air.Group of answer choicesTrueFalse
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.