Page 159 - Science Course 3 (Book 1)
P. 159

Mo4-L4b: What is the Mitotic Phase?




                              Key Concept                                          SUMMARY

                           What is the Mitotic Phase?                        What is the Mitotic Phase?

                   Why is the result of the cell cycle important?   The nucleus and its contents divide during
                                                                                     mitosis.

                                                                   The cytoplasm and its contents  divide during
                                                                                   cytokinesis.


























                 Mo4-L4: Vocabulary Review

               Direction: On each line, write the term from the word bank that correctly replaces the underlined words in
                           each sentence. NOTE: You may need to change a term to its plural form.
                      cell cycle            centromere           cytokinesis           daughter cells

                      eukaryotic            interphase           mitosis               sister chromatids




                                       1. At the end of the cell cycle, the division of the cell’s nucleus occurs.


                                       2. Until the sister chromatids in each duplicated chromosome separate during
                                           mitosis, they are held together by a special structure.


                                       3. A chromosome is made up of two identical coiled strands of DNA.


                                       4. Following mitosis, the division of the cell’s cytoplasm occurs.


                                       5. Most cells go through a cyclical process of growth, development, and division.

                                       6. The cell cycle can be divided into two main phases— a period of growth and
                                           development and the mitotic phase.


                                       7. Mitosis and cytokinesis result in the formation of two identical new cells.


                                       8. For some cells, identified as those with membrane-bound structures, the cell
                                           cycle might take as long as one year.

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