cells

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Across
  1. 1. - the center of an atom, which contains the protons and neutrons
  2. 4. - specialized structure that preforms important cellular functions
  3. 7. - unicellular organism that lacks a nucleus
  4. 8. - organism whose cells contain a nucleus
  5. 9. - thin, flexible barrier that surrounds all cells
  6. 10. - cell organelle consisting of RNA and protein
Down
  1. 2. - fundimental concept of biology that states all living things are made of cells
  2. 3. - organelle in cells that modifies, sorts
  3. 5. - fluid portion of the cell outside the nucleus
  4. 6. - basic unit of all forms of life