- The Cell Cycle and Cancer
I. Purpose
In this expirement we are comparing normal tissue and cancer tissue and comparing their different cell cycle.
II. Background
Cancer developes when cells lose the ability to regulate their cell cycle. When the cell cycle is not regulated , the cells continue to divide out of control and all daughter cells will have the same ability.
III. Hypothesis
I believe normal cells will look different than cancerous cells, when looking at a sample of cells because cancerous tissue cant control how much they grow so cancerous cells will be dividing more because they have a damaged gene.
IV. Materials (Virtual Lab Online)
- Cancerous Ovary Tissue
- Normal Ovary Tissue
- Cancerous Lung Tissue
- Normal Lung tissue
- Cancerous Stomach tissue
- Normal Stomach Tissue
- Microscope
V. Procedure
- Click the monitor to watch the video about the cell cycle
- now click the information button to learn about cancer.
- Click on the microscope to begin learning anout the phases of mitosis.
- Click and drag the label to the corresponding cell under the microscope.
- Open the data table and begin to record the number of cells in each phase of mitosis in the tissue sample. You can use the calcuator to determine the percentage of cells at rest. When you have counted all the cells in a particular sample, click the " Tissue Slides " and select a new sample. You can choose from normal or cancerous tissues.
- Open the journal to answer some questions about cell division and cancer.
VI. Data
VII. Journal Questions
- Normal cells at rest divide more than cancerous cells. the percentage of cells dividing, cancerous cells divide more than normal cells.
- Cancerous tissue, because when cells are dividing cancerous has the highest percentage than normal tissue.
- The normal tissue that has highest mitotic index is your skin because your skin is the most normal tissue that gets damaged easily so your skin is getting repaired or replaced the most.
VIII. Conclusion
In this expiriment we compaired normal and cancerous tissue and compaired their cell cycle to see which tissues divides more. We concluded that cancerous cells at rest divide less than normal cells. Also that the percentage of cells dividing , normal tissue divide less than cancerous tissue.