Cell Theory

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Across
  1. 1. the region of the cell that includes the fluid, the cytoskeleton, and all of the organelles except the nucleus
  2. 4. in physical science, an atom’s central region, which is made up of protons and neutrons
  3. 6. in biology, the smallest unit that can perform all life processes
  4. 9. a layer that covers a cell’s surface and acts as a barrier between the inside and outside of the cell and the cell
  5. 11. one of the small bodies in a cell that is specialized to perform a specific function
  6. 12. The last name of the scientist who discovered cells
  7. 13. an organism made up of cells that have a nucleus enclosed by a membrane
Down
  1. 2. The last name of the scientist who first described cells
  2. 3. a living thing
  3. 5. The last name of the scientist who discovered plants are made of cells
  4. 7. a single-celled organism that does not have a nucleus or membrane-bound organelles
  5. 8. The last name of the scientist who discovered animals are made of cells
  6. 10. The last name of the scientist who discovered that cells come from other cells