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Cell Growth and Division
Question of the Day: Where do new cells come from? Objective: I will be able to explain and demonstrate the steps of Mitosis.
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The cell goes through a ______, just like people.
Cell cycle- series of events that cells go through as they grow and divide The cell goes through a ______, just like people. G2 phase S phase G1 phase M phase
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Mitosis- A process where one cell divides into two cells. Happens in all cells except your sex cells(sperm and egg) Mitosis happens in your ________. One Cell Two Cells
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Each chromatid has an identical “sister” part on the chromosome
one of two identical “sister” parts of a duplicated chromosome. Each chromatid has an identical “sister” part on the chromosome This chromatid is identical to its sister chromatid Sister chromatid
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The centromere is found in the _____ of the _________
area where the chromatids of chromosome are attached The centromere is found in the _____ of the _________
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Centrioles are found in the _________.
one of two tiny structures located in the cytoplasm of animal cells near the nuclear envelope. Centrioles are found in the _________.
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Spindle look like _______; they pull _______ apart.
fanlike microtubule structure that help separate the chromosomes during mitosis Spindle look like _______; they pull _______ apart.
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Prophase is the ____ stage. The chromosomes make an ________.
first and longest phase of mitosis, during which the chromosomes become visible and the centrioles separate and take up positions on the opposite sides of the nucleus. Prophase is the ____ stage. The chromosomes make an ________.
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Metaphase is the ______ stage. The chromosomes meet in the ________.
second phase of mitosis, during which the chromosomes line up across the center of the cell Metaphase is the ______ stage. The chromosomes meet in the ________.
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Anaphase- the third phase of mitosis, during which the chromosome pairs separate and move towards opposite poles Anaphase is the _______ stage. The chromosome pairs _______ and ____ towards opposite end of the cell
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10-2 Vocabulary Telophase-
fourth and final phase of mitosis, during which the chromosomes begin to disperse into a tangle of dense material Telophase is the ______ stage. The cell starts to __________.
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Cytokinesis- division of the cytoplasm during cell division
Cytokinesis is the ______ stage. This is where cells are seen as ____ _____.
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Okay!!! Show me Prophase
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Okay!!! Show me Metaphase
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Okay!!! Show me Anaphase
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Okay!!! Show me Telophase
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Okay!!! Show me Cytokinesis
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Prophase Metaphase Anaphase Telophase Cytokinesis
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10-2 Cell Division 1. The Cell Cycle
a. A cell grows, prepares for division, and divides to form two daughter cells b. The cell cycle includes, four stages i. G1 phase: Gap phase where growth happens ii. Synthesis phase: chromosomes copied & DNA made G2 phase: Gap phase where growth happens Mitosis phase: cell nucleus divides and new cells form
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10-2 Cell Division 2. Mitosis is the dividing phase of the cell cycle- there are four steps and one dividing period
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Figure 10–5 Interphase Prophase Cytokinesis Metaphase Telophase
Section 10-2 Spindle forming Centrioles Chromatin Centromere Nuclear envelope Centriole Chromosomes (paired chromatids) Interphase Prophase Spindle Cytokinesis Centriole Metaphase Telophase Individual chromosomes Anaphase Nuclear envelope reforming Go to Section:
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Figure 10–5 Mitosis and Cytokinesis
Section 10-2 Spindle forming Centrioles Nuclear envelope Chromatin Centromere Centriole Chromosomes (paired chromatids) Interphase Prophase Spindle Cytokinesis Centriole Metaphase Telophase Individual chromosomes Anaphase Nuclear envelope reforming Prophase: DNA condenses into chromosomes & the nuclear envelope breaks down Go to Section:
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Figure 10–5 Mitosis and Cytokinesis
Spindle forming Centrioles Chromatin Centromere Nuclear envelope Centriole Chromosomes (paired chromatids) Interphase Prophase Spindle Cytokinesis Centriole Metaphase Telophase Individual chromosomes Anaphase Nuclear envelope reforming Metaphase: Chromosomes line up across the center of the cell
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Figure 10–5 Mitosis and Cytokinesis
Spindle forming Centrioles Chromatin Centromere Nuclear envelope Centriole Chromosomes (paired chromatids) Interphase Prophase Spindle Cytokinesis Centriole Metaphase Telophase Individual chromosomes Anaphase Nuclear envelope reforming Anaphase: Sister chromatids are pulled to opposite ends of the cell
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Figure 10–5 Mitosis and Cytokinesis
Spindle forming Centrioles Chromatin Centromere Nuclear envelope Centriole Chromosomes (paired chromatids) Interphase Prophase Spindle Cytokinesis Centriole Metaphase Telophase Individual chromosomes Anaphase Nuclear envelope reforming Telophase: chromosomes loosen up and the nuclear envelope reforms around each cluster of chromatids
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Figure 10–5 Mitosis and Cytokinesis
Spindle forming Centrioles Chromatin Centromere Nuclear envelope Centriole Chromosomes (paired chromatids) Interphase Prophase Spindle Cytokinesis Centriole Metaphase Telophase Individual chromosomes Anaphase Nuclear envelope reforming Cytokinesis: the cell splits into 2 identical cells
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Figure 10–4 The Cell Cycle Section 10-2 G1 phase M phase S phase
Go to Section:
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Concept Map Cell Cycle Interphase Go to Section: includes M phase
(Mitosis) Interphase is divided into is divided into G1 phase S phase Prophase G2 phase Metaphase Telophase Anaphase Go to Section:
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