Name ______Date ______Per ______

CELL GROWTH AND DIVISION WORKSHEET II

I. Matching – Each choice is used one time.

______1. Period of time from the beginning of one cell division to the beginning of the next

______2. End of telophase in which one cell splits into two cells

______3. Describes ability of a cell to differentiate into any type of cell

______4. Area where sister chromatids are attached

______5. Biomolecule used to build cell plate in plant cells

______6. Part of interphase in which DNA replicates; “point of no return”

______7. Genetic make-up of a cell (ex. Humans have 46 chromosomes)

______8. Division of the nucleus

______9. Proteins used to construct spindle fiber network

______10. Only found in animal cells, help with cell division

______11. Proteins that regulate timing of the cell cycle; malfunction may lead to cancer

______12. Pinched in portion of animal cell membrane; seen in telophase

______13. Two identical strands of DNA; DNA that has been replicated

______14. Part of interphase in which a cell is doing its cell job, growing

______15. Network that shortens to pull apart DNA during anaphase

______16. Fine strands of DNA wrapped in protein

______17. Asexual reproduction in prokaryotes

______18. Thickened, condensed form of DNA; visible with compound light microscope

______19. Part of interphase in which centrioles replicate; preparation for cell division

______20. Unspecialized cell capable of infinite reproduction

II. Use the diagram below to answer questions 1-11.

  1. Sequence the pictures above in the correct order beginning with interphase: ______
  2. Which phase above illustrates sister chromatids detaching at their centromeres? ______Name the phase ______
  3. Which phase above illustrates the formation of two new nuclei? ______Name the phase ______
  4. Which phase above illustrates sub-cellular organelles replicating in preparation for cell division? ______

Name the phase ______

  1. Which phase above would Synthesis have just occurred in? ______What phase is this? ______
  2. Which phase above represents the shortest phase of mitosis? ______What is the name of this phase? ______
  3. Which phase above is the longest phase of the cell cycle? ______What is the name of this phase? ______
  4. What phase above is the longest phase of mitosis? ______What is the name of this phase? ______
  5. What phase is NOT part of mitosis? ______What is the name of this phase? ______
  6. What phase has sister chromatids aligning on the equator of the cell? ______Name of this phase? ______
  7. What phase has DNA thicken, coil, and condense into visible sister chromatids? ______Name this phase. ______

------

  1. In order for the kinetochore microtubules to interact with the DNA in prophase, what must happen to the nuclear envelope? How

does this happen? ______

  1. Name all the words that we have used in this unit that could refer to the DNA of an organism. ______

______

  1. Beginning with metaphase, sequence the steps of the cell cycle…______
  2. Describe the DNA content of the daughter cells in relationship to the original cell (in terms of number of chromosomes and amount of DNA). ______
  3. Describe cytokinesis in a plant cell: ______

______

  1. Describe cytokinesis in an animal cell: ______

______

  1. How are cancer cells different from normal cells? ______
  2. What is the name of the proteins that regulate the timing of the cell cycle? ______
  3. Cells that have more DNA in them take longer to complete the S phase of the cell cycle. What occurs during S and why would it take longer to complete this phase? ______
  4. What process do bacteria use to divide? ______What is the benefit of this type of asexual reproduction for them? ______.
  5. What is the word for identical genetic information held together at their centromere? ______
  6. What phase of the cell cycle would shortening of the microtubules occur? ______
  7. What phase of the cell cycle would lengthening of the microtubules occur? ______
  8. If a cell passes the “point of no return” checkpoint in G1, what will happen next? ______
  9. What is the name of the protein disk that holds sister chromatids together and serves as a place for kinetochore microtubules to

attach? ______