Routt Cell Division

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Across
  1. 1. ______ cells never have cell walls.
  2. 4. a hollow tube-shaped protein.
  3. 5. an indentation in the plasma membrane that forms during cytokinesis in animal cells.
  4. 7. part of a chromosome that attaches to the spindle apparatus and where sister chromatids attach to each other.
  5. 8. ______ cells never have centrioles.
  6. 10. 4th phase of mitosis
  7. 12. a form of DNA: loose uncoiled DNA strands.
  8. 13. 1st phase of mitosis
  9. 14. watery goo inside a cell.
  10. 18. genetic material.
  11. 20. 2nd phase of mitosis
  12. 22. structure made of spindle fibers that separates chromosomes during cell division.
  13. 23. structure inside the nucleus where ribosomes are formed.
Down
  1. 2. organelle containing the DNA.
  2. 3. microtubules that form the spindle apparatus.
  3. 6. thick rigid structure surrounding plant cells (and others) outside the plasma membrane.
  4. 8. thin and flexible container for all cells; contains the cell; controls cell transport.
  5. 9. the rest of the cell cycle other than mitosis and cytokinesis.
  6. 11. one of a pair of identical chromosomes attached together at their centromeres.
  7. 12. division of the cytoplasm.
  8. 15. double membrane surrounding the DNA of the nucleus.
  9. 16. two new cell walls along with two new plasma membranes that form during cytokinesis in plant cells.
  10. 17. a form of DNA: skein-like DNA coiled around spools of protein.
  11. 19. structure that organizes the microtubules of the cell.
  12. 21. 3rd phase of mitosis