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11 Cards in this Set
- Front
- Back
G1
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Cytoplasmic Growth/Cell Growth
Cell monitors the environment and its own size Do designed function (normal job) Cells begin synthesizing all the cellular components needed in order to generate two identically complimented daughter cells |
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S
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DNA synthesizes or duplicates
Some specialized proteins are synthesized during S phase, particularly the histones |
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G2
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Duplication of the centrioles is usually completed
Chromosomes begin condensing, the nucleoli disappear and two microtubule organizing centers begin polymerizing tubulins for eventual production of the spindle poles Provides a safety time, allowing enough time for the cell to ensure DNA replication is complete before commencing mitosis Cell begins to get ready for mitosis by putting together much of the machinery needed to move the chromosomes around |
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Prophase
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Chromatic condenses into chromosomes. The fibers of the chromatin condens into tigh coiled rods like parts. Centrioles move to opposite sides of cytoplasm; nucleolus and nuclear membrane disappear. Microtubules are assembled from proteins in the cytoplasm and associate with centrioles and chromatids of chromosomes
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Metaphase
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Spindle fibers from the centrioles attach to the Centromeres of each chromosome; chromosomes align midway between the centrioles.
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Anaphase
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Centromeres separate, and duplicate parts of chromosomes then chromatids of the chromosomes separate; spindle fibers shorten and pull these new individual chromosomes toward centrioles
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Telophase
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Cytokenesis happens. Chromosomes elongate and form chromatin threads; nuclear membranes apear around each chromosome set; nucleoli appear; microtubules break down. Chromosomes unwind, and membrane continues to constrict until two daughter cells are formed.
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Mitosis
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Division of the cell nucleus into two daughter nuclei
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Karyokinesis
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Division of the nuclear parts
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Cytokinesis
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Division of Cytoplasm
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Centromere
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Fasten Chromatids
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