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What is the role of the respiratory system?

Practice Questions

Q1
What is the role of the respiratory system?
  1. To break down food
  2. To exchange gases
  3. To circulate blood
  4. To protect against pathogens

Questions & Step-by-Step Solutions

What is the role of the respiratory system?
  • Step 1: Understand that the respiratory system is a group of organs and tissues that help us breathe.
  • Step 2: Know that the main function of the respiratory system is to take in oxygen from the air.
  • Step 3: Realize that oxygen is needed by our body to produce energy.
  • Step 4: Learn that the respiratory system also helps to remove carbon dioxide, which is a waste product made by our body.
  • Step 5: Remember that this exchange of gases (oxygen in, carbon dioxide out) happens in the lungs.
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