RESPIRATION

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Across
  1. 5. Product of anaerobic respiration in yeast
  2. 9. Tube carrying air into each lung
  3. 11. Waste gas produced in respiration
  4. 12. Tube carrying air to lungs
  5. 13. Smaller air passages in lungs
  6. 14. Process by which gases move across membranes
  7. 16. First stage of respiration breaking glucose into pyruvate
  8. 19. Gas required for aerobic respiration
  9. 25. Respiration using oxygen
  10. 26. Molecule that stores energy
  11. 27. Respiration without oxygen
  12. 28. Released during respiration
  13. 29. Process of releasing energy from food
  14. 30. Site of anaerobic respiration
Down
  1. 1. Protein that carries oxygen in blood
  2. 2. Final stage of aerobic respiration producing ATP
  3. 3. Organelle where respiration occurs
  4. 4. Muscles between ribs aiding breathing
  5. 6. By-product of aerobic respiration
  6. 7. Stage of aerobic respiration producing carbon dioxide
  7. 8. Anaerobic process producing alcohol or lactic acid
  8. 10. Movement of air in and out of lungs
  9. 15. Air sac where gas exchange occurs
  10. 17. Product of anaerobic respiration in muscles
  11. 18. Expelling air from lungs
  12. 20. Main substrate for respiration
  13. 21. Process of moving air in and out of lungs
  14. 22. Muscle controlling breathing
  15. 23. Taking air into lungs
  16. 24. Tiny blood vessel for gas exchange