Cells and Respiration Crossword

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Across
  1. 2. An instrument for viewing small objects such as cells.
  2. 9. What we breathe out
  3. 11. Serve as a barrier and gatekeepers
  4. 13. A layer surrounding the various types of cells.
  5. 15. Lens that are found on a microscope and are used to look through.
  6. 16. Actions of breathing
  7. 18. The process in which plants use sunlight,water and carbon dioxide to create energy.
Down
  1. 1. H20
  2. 3. A thick solution that fills each cell and is enclosed by the cell membrane.
  3. 4. A membrane cell organelle
  4. 5. Its job is to perform in the cell.
  5. 6. The major source of energy for body cells.
  6. 7. A membrane-bound organelle that contains chronosomes.
  7. 8. Things are placed on this to get a closer view with a microscope.
  8. 10. What we use to do workout
  9. 11. A plant cell organelle that converts light energy into chemical energy.
  10. 12. Generates most of the chemical energy needed to power the cell biochemical reactions.
  11. 14. The smallest unit that can live on its own.
  12. 17. Light from the sun
  13. 19. All cells need it to create energy efficiently.