Cell Division- Mitosis As a cell grows, more demand is placed on exchange of materials (nutrients intake, waste removal intake). Also more demands are placed on its DNA As a cell grows it's surface area grows slower (Pie R Squared) than its volume (Pie R Cubed). When the ratio of Surface Area/Volume reaches a specific point chemicals called cyclins begin the cell division process. What are chromosomes? They are a protein structure that contain …
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showed last 75 words of 262 total
…functions but does not reproduce. Next comes the "S" phase. In this phase DNA is replicated and Chromosomes duplicated in Chromosome pairs. After this comes a short "G2" phase where molecules and organelles that cause Mitosis are produced. The last phase is "M" or Mitosis phase. Mitosis has four steps: A. Prophase B. Metaphase C. Anaphase D. Telephase the cell seperates into two new cells. In animal cells it completely seperates, this is called cytokinesos.