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Cancer – The Cell Cycle Gone Wrong

Cancer – The Cell Cycle Gone Wrong. An Overview. Cancer - information and treatment. The Cell Cycle. There are 3 stages in the cell cycle: 1) INTERPHASE – cells grow and prepare to divide 2) MITOSIS – cells start to divide 3) CYTOKINESIS – two cells are formed from one.

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Cancer – The Cell Cycle Gone Wrong

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  1. Cancer – The Cell Cycle Gone Wrong

  2. An Overview • Cancer - information and treatment

  3. The Cell Cycle • There are 3 stages in the cell cycle: 1) INTERPHASE – cells grow and prepare to divide 2) MITOSIS – cells start to divide 3) CYTOKINESIS– two cells are formed from one

  4. The Cell Cycle

  5. What is Cancer? • A group of diseases in the which cell division is uncontrolled • Cancer cells develop when a mutation takes place in the DNA that controls cell division YouTube - How cancer develops

  6. Comparing Normal & Cancer Cells Cancerous Cell Division.mht

  7. Tumours • A tumour is a mass of cells that continue to divide and increase in number for no benefit to the body

  8. Bone Cancer

  9. Liver Tumour

  10. Types of Tumours • There are 2 types of tumours: 1- benign – not cancerous because it does not affect any surrounding cells 2 - malignant – cancerous because it interferes with the function of healthy cells - Cancerous cells travel in the blood and can an invade other parts of the body and cause new tumours to form there

  11. Cancer Cells Spreading Through the Body

  12. Causes of Cancer There are 2 main causes for cancer: 1 – inherited -one that appears within members of the same family EX. Breast and colon cancer 2- environmental • Caused by an environmental factor called a carcinogen EX. Tobacco, X-rays, even cosmetics

  13. Tobacco • Contains 4000 chemicals and 50 of them are carcinogens • the most common cause of lung cancer

  14. Foods that Protect • Antioxidants are chemicals that prevent cells from becoming cancer cells • Foods rich in antioxidants are: Tomatoes, carrots, grapes, and broccoli • Poor diet is linked to colon cancer

  15. Harmful Sunlight • Skin cancer is caused by ultraviolet radiation (UV) from the sun • UV causes mutations in the skin cells

  16. Types of UV • There are 2 types of UV: 1- UVA – causes the skin to tan 2 – UVB – causes the skin to burn • UVA penetrates more deeply and is more harmful than UVB • Both can lead to a deadly form of skin cancer called melanoma

  17. Skin Cancer

  18. The Interaction between your skin and the Sun UV Skin Animation

  19. Cosmetics!! • lead in your lipstick? • carcinogens in your cleanser? • Story of Cosmetics « The Story of Stuff Project • Lousy Labels - Marketplace

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