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Why Do Cells Divide?. Efficiency of moving materials into the cellThe larger the cell becomes the less efficient it isThe volume of the cell increases faster then its surface areaCells that grow too large no longer have enough surface area to take in nutrients and remove waste. . Ratio of Surface
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1. Why Do Cells Divide?
2. Why Do Cells Divide? Efficiency of moving materials into the cell
The larger the cell becomes the less efficient it is
The volume of the cell increases faster then its surface area
Cells that grow too large no longer have enough surface area to take in nutrients and remove waste
3. Ratio of Surface Area to Volume in Cells
4. DNA Overload As the cell grows it does not make copies of its DNA
If it grows too large the DNA in the cell will not be able to contain the information that needs to be stored
5. Chromosomes Threadlike structures made up of DNA that coils around proteins. Contains genetic information that is passed form parents to offspring.
6. Chromatids (Sister) One of two identical parts of a duplicated chromosome
7. Number of Chromosomes Fruit Flies: 8
Carrots: 20
Humans: 46
Fern: 480
White Ash: 138
Turkey: 82 http://i.pbase.com/u9/dannysmythe/large/4319077.Carrot.jpg
http://www.news.wisc.edu/newsphotos/images/fruit_fly_research03_6801.JPGhttp://i.pbase.com/u9/dannysmythe/large/4319077.Carrot.jpg
http://www.news.wisc.edu/newsphotos/images/fruit_fly_research03_6801.JPG
8. Human Karyotype
9. The Cell Cycle