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Understanding Cancer: Mutations and Cell Division

Explore the world of cancer, mutations, and cell division gone wrong. Learn about the causes of cancer, how tumors form, and the importance of cancer screening. Discover how lifestyle choices, genetics, and environmental factors can influence cancer development.

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Understanding Cancer: Mutations and Cell Division

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  1. Cell Division Gone Wrong

  2. Mutations A permanent change in the sequence of DNA of a gene Thesunwashotbuttheoldmandidnotgethishat. The sun was hot but the old man did not get his hat. T hes unw ash otb utt heo ldm and idn otg eth ish at.

  3. Progeria

  4. Hypertrichosis

  5. Proteus syndrome

  6. Cancer  A broad group of diseases that result in uncontrolled cell division.

  7. Cancer • Why does it keep dividing? • The cells checkpoints might fail to identify problems or kill off the cell. As a result...

  8. Cancer • Tumour – a rapidly growing mass of cells

  9. Cancer • Benign tumour – the cells stay together and have no serious effect on surrounding tissues. • Malignant tumour – the cells interfere with the function of neighbouring cells and tissues Malignant tumour Benign tumor

  10. Cancer • Metastasis – occurs when cancer cells break away from the original tumour and move to a different part of the body.

  11. Causes of Cancer • 1. Mutations – random changes that occur in the DNA while it is being duplicated.

  12. Causes of Cancer • 2. Carcinogens – are environmental factors that cause mutations. • Tobacco • Plastics • Radiation • X-rays • Sunlight

  13. Smoking and Cancer • What else does smoking affect?? • Lungs • Lips • Tongue • Fingers • Trachea • Throat

  14. Causes of Cancer • 3. Some cancers can be hereditary depending on whether or not you obtain that portion of DNA from your parents. • Ex. Breast cancer, colon cancer

  15. Causes of Cancer • 4. Infections & Viruses • Virus enters cell and ‘highjacks’ it to reproduce • Some viruses insert their own DNA inside the host cell, causing it to become cancerous

  16. Cancer Screening • This involves checking for cancer even if there are no symptoms. • This is important to catch cancer at an early stage. • ABCD (asymmetry, border, colour, diameter)

  17. Cancer Fighting ‘Super Foods’

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