Which gas is primarily responsible for the drive to breathe in healthy individua

Practice Questions

Q1
Which gas is primarily responsible for the drive to breathe in healthy individuals? (2023)
  1. Oxygen
  2. Carbon dioxide
  3. Nitrogen
  4. Hydrogen

Questions & Step-by-Step Solutions

Which gas is primarily responsible for the drive to breathe in healthy individuals? (2023)
  • Step 1: Understand that breathing is controlled by the brain.
  • Step 2: Know that the body needs oxygen to function properly.
  • Step 3: Realize that when we breathe, we take in oxygen and release carbon dioxide.
  • Step 4: Learn that carbon dioxide is a waste product produced by our body when it uses oxygen.
  • Step 5: Recognize that if carbon dioxide levels in the blood get too high, it signals the brain that we need to breathe.
  • Step 6: Understand that the brain has special centers that respond to high carbon dioxide levels by making us breathe more.
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