Cells

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Across
  1. 3. A group of organs that work together
  2. 5. Storage area for water, food, or waste
  3. 9. Outer boundary of the cell, selectively permeable
  4. 10. Site of protein synthesis
  5. 12. Watery material inside cell, holds organelles
  6. 14. Movement of materials from low to high concentration
  7. 16. A group of cells that perform the same function
  8. 17. Surrounds the nucleus, selectively permeable
  9. 20. The movement of materials out of the cell at the cell membrane
  10. 21. Within nucleus, where ribosomes are made
  11. 22. Folded membrane that transports materials around the cell
  12. 23. Diffusion of water
  13. 24. Rigid structure outside cell membrane, only in plant cells
  14. 25. A group of tissues that work together to perform a specific function
Down
  1. 1. has enzymes which digest wastes and worn out cell parts
  2. 2. The shrinking of the cell membrane
  3. 4. Site of cellular respiration, makes ATP
  4. 6. Basic building blocks of life
  5. 7. Allows certain materials to pass through it
  6. 8. The cell engulfs a substance outside the cell and surrounds it with the cell membrane
  7. 11. Site of photosynthesis, only in plant cells
  8. 13. Control center for cell processes
  9. 15. Packaging and secreting of proteins out of the cell parts
  10. 18. Movement of molecules from high concentration to low
  11. 19. Cell division, only in animal cells