Gas Exchange

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Across
  1. 4. a gas that the animals breathe out during respiration while takes in by the plants during photosynthesis.
  2. 7. it controls gas exchange in the leaf.
  3. 9. the inhaling of oxygen and the exhaling of carbon dioxide.
  4. 10. it is where the air passes during respiration.
  5. 11. it is the movement of air from the lungs out of the airways, to the external environment during breathing.
  6. 12. the process of breathing or entering air in the body through the nose and mouth.
Down
  1. 1. a gas that the animals takes in while is being give out by the plants in the atmosphere.
  2. 2. the structure where the respiratory system and the circulatory system meet.
  3. 3. it controls the ratio of breathing.
  4. 5. where the exchange of gases happen.
  5. 6. together with Mucous work to trap dirt and germs before we inhale.
  6. 8. its function is to funnel the inhaled air to the lungs and the exhaled air out of the body.