Life of a Body Cell Somatic Cell

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Life of a Body CellSomatic Cell

• The Cell Cycle
• MITOSIS

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What is Mitosis?

• The division of the cell nucleus resulting in 2
  new cells identical to the parent cell. The 2
  new cells are called daughter cells.

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Following InterphaseMitosis Begins when?A
Cell Cannot Grow in Size anymore as it will
burst.
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InterphaseAll cellular activities other than
Mitosis

• Cell growing in size. Normal daily activity!
• Cell synthesizing, storing materials, moving
  items inside and out of cell
• Carrying on all daily routine activity.
• Only visible structure in the cell is the nucleus.

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4 Stages of Mitosis

• Prophase
• Metaphase
• Anaphase
• Telophase

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Prophase
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What is Prophase?

• The cell is getting ready to divide.
• The chromosomes material is duplicating itself.

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Metaphase
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What is Metaphase?

• Chromosomes can be seen and counted.
• Nuclear membrane disappears.
• Spindles form to guide chromosomes during
  division.
• Chromosomes are in the middle of the cell.

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Anaphase
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What is Anaphase?

• The two double chromosomes line up at the center
  of the cell.
• Humans have 23 pair of chromosomes.
• Chromosomes begin to move Apart.

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Telophase
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What is Telophase?

• Chromosomes divided gather at the center of new
  cells.
• Nuclear membrane forms again.
• Cytoplasm begins to form around both new nuclei.

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How Do 2 Individual Cells Form?

• Cytokinesis Division of
• the cytoplasm
• One parent cell 2 Daughter Cells
• Exactly the same!
• Same chromosome count as parent cell.

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Mitosis Results

• Asexual Reproduction of Cells
• Equal distribution of DNA in both daughter cells.
• Exactly the SAME number of chromosomes as parent
  cell.

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PlantMitosisStages
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Mitosis Facts

• Plant and Animal results in 2 daughter cells.
• Daughter cells identical to Parent cells.
• Phases not all completed at the same time.
• Prophase and Telophase the longest.
• Most SOMATIC cells divide in 1 to 2 hours.
• Insects in 10 minutes.
• Plant Root Tip Constantly