Mitosis

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Mitosis

• March 29, 2003

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How do organisms grow?

• Cells do NOT get bigger
• Cells replicate
• All cells in the body are about the same size

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Cell Division

• Needed for the cell to grow
• One cell divides into two cells
• Each new cell is identical
• Occurs in phases

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Phase 1 - Interphase

• Cell performs life functions
• Cell is NOT dividing
• Chromosomes (DNA) duplicate

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Mitosis

• Begins at phase 2
• Mitosis is the process by which the nucleus of a
  cell divides into two and the formation of two
  new cells begins

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Phase 2 - Prophase

• Chromosomes become visible
• Nuclear membrane begins to break

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Phase 3 - Metaphase

• Chromosomes line up on the equator of the cell

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Phase 4 Anaphase

• Chromosomes begin to separate
• Same chromosomes go to each end of the cell

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Phase 5 - Telophase

• Two new nuclei are formed
• Nuclear membrane forms around the chromosomes
• Mitosis is complete

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Phase 6 - Cytokinesis

• Division of cytoplasm
• Two new cells are formed
• Cell division complete

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Review

• Phase 1 Interphase
• Phase 2 Prophase
• Phase 3 Metaphase
• Phase 4 Anaphase
• Phase 5 Telophase
• Phase 6 - Cytokinesis

• Stages of
• Mitosis

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Pneumonic Devices

• I
• Please
• Mom
• At
• Taking
• Chores

• I
• Play
• Mostly
• At
• The
• Center, Church Concert

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Which phase is this?

• Interphase

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Which phase is this?

• Prophase

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Which phase is this?

• Metaphase

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Which phase is this?

• 
  Anaphase

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Which phase is this?

• 
  Telophase

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Which phase is this?

• 
  Cytokinesis

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Can you find all of the phases?
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Can you find all of the phases?
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