Respiration

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Across
  1. 2. The gas that you find less of in the air you have breathed out compared to the amount of gas you would find in the air you breathe in
  2. 4. The system that gives food/glucose into the blood
  3. 6. A combination of chemical reactions which release energy inside living cells
  4. 8. The wind pipe
  5. 11. The lungs are really well adapted for gas exchange because they have a huge _______ area which is also moist
  6. 12. The lungs are really well adapted for gas exchange because they have a massive _____ supply
  7. 13. The colour of the blood cells that carry oxygen around the body
Down
  1. 1. Apart from Carbon Dioxide and water, the result of combining glucose, a sugar, and oxygen, a gas
  2. 3. A system that pumps oxygen into the blood and carbon dioxide out of the body and that has something to do with respiration
  3. 5. A system that is everywhere in our body and that has something to do with respiration
  4. 7. The lungs are really well adapted for gas exchange because the have very ____ walls
  5. 9. Air sacs
  6. 10. The parts of our body that uses respiration's energy the most