Gaseous Exchange

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Across
  1. 2. - Type of respiration that requires oxygen.
  2. 5. - Muscle that aids in the process of breathing.
  3. 6. - Oxygenated ________ carries oxygen from lungs to rest of the body.
  4. 8. - The act of breathing out.
  5. 9. - Protein in red blood cells that binds to oxygen.
  6. 11. - Tubes that branch off from the trachea and carry air to the lungs.
  7. 12. - Tiny air sacs in the lungs where gas exchange occurs.
  8. 14. - Waste gas produced in cellular respiration.
  9. 15. - Gas essential for aerobic respiration.
Down
  1. 1. - Small blood vessels where gas exchange takes place.
  2. 3. - Vessel carrying deoxygenated blood from heart to lungs.
  3. 4. - Process of exchanging gases to produce energy.
  4. 7. - Gases going from area of high concentration to low concentration.
  5. 10. – It connects the larynx to the bronchi.
  6. 13. - Organs responsible for gaseous exchange in the respiratory system.