Understanding Exhaled Breath: The Role of Carbon Dioxide
The primary component of exhaled breath is carbon dioxide (CO₂). During inhalation, we take in oxygen (O₂), which is transported via blood to cells for energy production (cellular respiration). CO₂ is a byproduct of this process, transported back to the lungs and exhaled. This gas exchange maintains acid-base balance and supplies oxygen for vital metabolic functions.
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