gas exchange in plants and animals

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Across
  1. 2. Gas taken in by plants and released by animals during respiration. (Carbon Dioxide)
  2. 3. The main respiratory organs in animals where gas exchange occurs. (Lungs)Down
  3. 5. The process of breaking down glucose with oxygen to release energy.
  4. 7. The process where plants use sunlight to make food and release oxygen.
  5. 8. The windpipe that carries air to the lungs.
  6. 11. Gas taken in by animals and released by plants during photosynthesis.
Down
  1. 1. Cells that control the opening and closing of stomata. (Guard Cells)
  2. 2. Organelle in plant cells where photosynthesis occurs. (Chloroplast)
  3. 4. Tiny air sacs in the lungs where oxygen and carbon dioxide are exchanged. (Alveoli)
  4. 6. The muscle that helps in breathing by contracting and relaxing.
  5. 9. Tubes that branch from the trachea into the lungs. (Bronchi)
  6. 10. Tiny openings on leaves that allow gas exchange.