Cells

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Across
  1. 2. boundary outside the cell, found in both plant and animal cells
  2. 4. folded membrane that moves materials around the cell
  3. 8. Packaging and secreting of proteins out of the cell parts
  4. 12. outside the cell membrane, plant calls only
  5. 13. created the idea that all cells arise from pre-existing cells
  6. 15. allows certain materials to pass thru it
  7. 16. diffusion of water
  8. 18. saw single cell organisms under scope
  9. 19. site of protein synthesis
  10. 21. movement of materials across the membrane which requires the expenditure of energy
  11. 23. has enzymes that digest waste and worn out cell parts
  12. 25. discovered the nucleus
Down
  1. 1. have organelles and a nucleus
  2. 3. surrounds the nucleus and is selectively permeable
  3. 5. storage area for water, food, or waste
  4. 6. movement of molecules from high concentration to low concentration
  5. 7. lack organelles and no nucleus
  6. 9. watery material inside the cell
  7. 10. doesn't require any use of energy by the cell
  8. 11. site of cellular respiration
  9. 14. light energy is changed to chemical energy, plant cells only
  10. 17. cell division, animal cells only
  11. 20. control center of a cell
  12. 22. all animals are made of cells
  13. 24. made up the word "Cell"