How much carbon dioxide is typically exhaled in a single breath?

Practice Questions

Q1
How much carbon dioxide is typically exhaled in a single breath?
  1. 0.03%
  2. 4%
  3. 10%
  4. 15%

Questions & Step-by-Step Solutions

How much carbon dioxide is typically exhaled in a single breath?
  • Step 1: Understand that when we breathe in, we take in oxygen and when we breathe out, we release carbon dioxide.
  • Step 2: Know that the air we exhale is not just carbon dioxide; it also contains other gases.
  • Step 3: Realize that typically, about 4% of the air we exhale is carbon dioxide.
  • Step 4: Remember that this percentage can vary slightly from person to person.
  • Carbon Dioxide in Exhaled Air – Understanding the composition of exhaled air, specifically the percentage of carbon dioxide present.
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