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N5 Cell Cycle

N5 Cell Cycle. Name Guyton Period Date. 1. cell cycle = life cycle of a cell 2. . 3. reasons for a cell to divide: -limits to diffusion -DNA overload -CONTACT INHIBITION. 1 2 3 4 5 6. 5. Cell cycle is broken down into PHASES: * INTERPHASE (longest) PROPHASE

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N5 Cell Cycle

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  1. N5Cell Cycle Name Guyton Period Date

  2. 1. cell cycle = life cycle of a cell 2.

  3. 3. reasons for a cell to divide: -limits to diffusion -DNA overload -CONTACT INHIBITION

  4. 1 2 3 4 5 6

  5. 5. Cell cycle is broken down into PHASES: *INTERPHASE (longest) PROPHASE METAPHASE ANAPHASE TELOPHASE CYTOKINESIS mitosis

  6. * 6. Using ALL 4 textbooks, complete the following chart: PHASE Summary of defining characteristics (DNA) G1 (gap 1) S (synthesis) G2 (gap 2) Prophase Metaphase Anaphase Telophase cytokinesis * * * *

  7. (Int.)G1 cell grows to max size, organelles copied (Int.)S DNA (chromosomes)duplicated, *Int.)G2 organelles, etc. organized to go to new daughter cells

  8. PROPHASE chromatin condenses into visible chromosomes; nuclear membrane begins to break down; spindles form METAPHASE nuclear membrane breaks; chromosomes lined up in MIDDLE; connected to spindles ANAPHASE sister chromosomes pulled APART and move to opposite poles (shortest phase)

  9. TELOPHASE chromosomes decondense into chromatin; nuclear membrane re-forms; END OF MITOSIS CYTOKINESIS division of cytoplasm; CLEAVAGE FURROW forms and separates membrane into 2 (cell plate formation in plants)

  10. Writing Activity • Each group will be creating a RHYMING poem to relate the nuclear changes that occur during mitosis • Minimum 5 stanzas / paragraphs • Introduction / pro. / meta. / ana. / telo. *Head your writing assignment with a mnemonic device for remembering the entire order of the cell cycle I___ P___M___A___T___C___

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