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The Cell Cycle. The Cell Cycle The life of a cell is called the cell cycle The cycle begins when the cell is formed The cycle ends when the cell divides.

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Presentation on theme: "The Cell Cycle. The Cell Cycle The life of a cell is called the cell cycle The cycle begins when the cell is formed The cycle ends when the cell divides."— Presentation transcript:

1 The Cell Cycle

2 The Cell Cycle The life of a cell is called the cell cycle The cycle begins when the cell is formed The cycle ends when the cell divides to form two new cells Prokaryote divide in a process called binary fission Eukaryotic cells divide to form two identical cells in a process called mitosis

3 The Cell Cycle Before dividing DNA is copied DNA forms into chromosomes Chromosomes are two exact copies of the DNA There are 23 pairs or 46 chromosomes in humans Potatoes have 24 and 48

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5 The Cell Cycle Chromosomes are two exact copies of the DNA There are 23 pairs or 46 chromosomes in humans Potatoes have 24 and 48 Ophioglossum reticulatum has 1,260 chromosomes Plants cells divide differently because of their cell wall They form a plate between the two new cells

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12 http://www.johnkyrk.com/mitosis.html Mitosis

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19 Video Cell Division

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21 http://www.neok12.com/php/watch.php?v=zX 767c057c66595675705351&t=Cell-Division

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