GAS EXCHANGE in Plants and Animals

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Across
  1. 3. Muscle aiding in breathing by expanding and contracting the chest cavity.
  2. 5. Tiny blood vessels facilitating gas exchange in tissues.
  3. 6. Process converting light energy into chemical energy.
  4. 8. Respiratory organs for gas exchange in animals.
  5. 10. Windpipe, conducting air to and from the lungs.
  6. 11. Movement of gases from high to low concentration.
Down
  1. 1. Tiny pores on leaves allowing gas exchange.
  2. 2. Water loss through plant leaves.
  3. 4. Process of exchanging gases, often involving oxygen and carbon dioxide.
  4. 5. Organelles where photosynthesis occurs.
  5. 7. Tiny air sacs in lungs where gas exchange occurs.
  6. 9. Cells controlling stomatal opening and closing.