Cells: The Basic Unit Of Life

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Across
  1. 4. Ribosomes make ____________
  2. 7. This is the "post office" of the cell
  3. 8. Cells are made of these
  4. 10. This type of blood cell protects you from infection
  5. 12. Molecules are made of these
  6. 13. The number of cells that make up your body
  7. 15. Examples include humans, mushrooms, dogs, and pine trees
  8. 17. Anton Van Leeuwenhoek was the first scientist to say that cells are ___________ things
  9. 18. Different types of tissues working together
  10. 19. Cells make up all ____________
Down
  1. 1. The "command center" of a cell
  2. 2. This organelle releases energy in a cell
  3. 3. Many cells put together make these larger structures
  4. 5. He discovered cells in 1665
  5. 6. Different types of organs working together
  6. 9. Only plant cells have this, which surrounds plant cells
  7. 11. All cells take in _________
  8. 12. ________ living things are made of cells
  9. 14. It surrounds the cell
  10. 16. All cells release ___________