Respiration

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Across
  1. 4. what respiration releases
  2. 5. basic units of living things where respiration happens
  3. 7. organs where gas exchange happens
  4. 8. respiration that uses oxygen
  5. 9. moving air in and out of the lungs
  6. 11. process that releases energy from glucose in cells
Down
  1. 1. tissues that need more energy during exercise
  2. 2. gas needed for aerobic respiration
  3. 3. sugar used in respiration
  4. 6. carries oxygen and glucose around the body
  5. 8. respiration without oxygen
  6. 10. organ that pumps blood around the body