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Mitosis & Cancer: When Making New Cells Goes Terribly Wrong!

Mitosis & Cancer: When Making New Cells Goes Terribly Wrong!. When is mitosis a good thing?. When you have to add or replace cells growth & development repair replacement. When is mitosis a BAD thing. When cells reproduce & they are not needed

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Mitosis & Cancer: When Making New Cells Goes Terribly Wrong!

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  1. Mitosis & Cancer:When Making New Cells Goes Terribly Wrong!

  2. When is mitosis a good thing? • When you have to add or replace cells • growth & development • repair • replacement

  3. When is mitosis a BAD thing • When cells reproduce & they are not needed • these cells take over organs, but don’t do the right job • they just keep making copies • cancer • damages organs

  4. Why would cells just make copies? • If DNA gets damaged, cells stop listening to correct instructions • mutations • Causes of mutations: • UV radiation • chemical exposure • radiation exposure • heat • cigarette smoke • pollution • age • genetics

  5. Tumors • Benign tumor • abnormal cells remain at original site as a lump • most do not cause serious problems &can be removed by surgery

  6. Tumors • Malignant tumor • cells leave original site • carried by blood system to other tissues • start more tumors • damage functions of organs throughout body

  7. side effects Treatments for cancers • Treatments kill rapidly dividing cells • chemotherapy • poisonous drugs that kill rapidly dividing cells • radiation • high energy beam kills rapidly dividing cells

  8. Any Questions?? Any Questions??

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