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Cancer and the Cell Cycle

Learn how errors in the cell cycle lead to cancer, the types of cancer, causes, treatment options, and prevention methods. Explore the impact of mutations, tumor growth, and the importance of cell cycle checkpoints.

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Cancer and the Cell Cycle

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  1. Cancer and the Cell Cycle EQ: How do errors in the cell cycle develop into cancer?

  2. What is cancer? Animation

  3. Cancer • Uncontrolled cell growth • Mutations- damaged or changed DNA • Tumor- mass of tissue that can crowd out normal cells and spread in the body through blood or the lymphatic system • Benign- not cancerous, can be removed, do not spread, (bein=good) -Malignant-cancerous, invade nearby tissues and spread, (mal=bad)

  4. Cancer and the Cell Cycle: • Checkpoints during cell cycle to keep control: • If good  Next Stage • If bad  Apoptosis (destroy cell) • This does not occur in cancer cell • Unlike normal cells, cancer cells continue to divide indefinitely, even if they become densely packed. • Cancer cells will also continue dividing even if they are no longer attached to other cells. • Unregulated cancer division: • https://www.youtube.com/watch?v=IeUANxFVXKc&feature=em-share_video_user

  5. Causes:*Any substance that causes cancer is called a carcinogen! • There is no single cause • Genetics, health, nutrition, lifestyle, and environmental factors • Cigarette smoke • Diet: Fatty food/Alcohol Consumption • UV Light • Sexual Behavior/HPV Virus • Environmental: Chemicals in drinking water, air pollution, food, etc

  6. KINDS OF CANCER • Carcinomas- tumors grow in the skin and lining of organs. Ex. Lung and breast cancer • Sarcomas- tumors that grow in bone and muscle tissue. • Lymphomas- tumors that grow in the lymph and blood. Ex. Leukemia.

  7. Treatment • Surgery/removal • Radiation • chemotherapy

  8. Exit Ticket: • Which stage do you think cancer most likely speeds up during the Cell cycle? • What are some ways you can prevent cancer in your life?

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