cell division
- Created by: umar2312
- Created on: 01-05-17 06:01
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- DNA & Cell Division
- A cell that contains a full complement of chromosomes is called diploid. 1 set from each parent.
- A karyotype shows the number/appearance of chromosomes.Male (X&Y)Female (2xY)
- The chromosome complement is how many chromosomes found in the c ell.
- Cells must divide in order to increase the number of cells in an organism. Cell division allows cells to grow and repair damaged parts
- Division of body cells is called mitosis. MItosis results in the formation of 2 identical daughter nuclei, each of which goes into a new daughter cell. It is vital that nuclei are identical in order to maintain chromosome complement
- The cell divides to produce 2 daughter cells whihch are identical to the parent cell with the same chromosome complement.
- Aseptic techniques-techniques that give close to sterile conditions for the growth of cells. This reduces the risk of contamination of bacteria and fungi
- 4 conditions required:
- Nutrition-Provide substances for the cell to grow
- Temperature- High temperatures destroy cells and low temperatures slow down cell functions
- pH-Extremes of pH will destroy cells.
- Oxygen-This allows the cells to respire
- pH-Extremes of pH will destroy cells.
- Temperature- High temperatures destroy cells and low temperatures slow down cell functions
- Nutrition-Provide substances for the cell to grow
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