1. Cell Division Going Wrong: Cancer

2. Cancer
A group of diseases in which cells grow and divide out of control.

3. Check points…

4. Cancer Why does it keep dividing?
The cells checkpoints might fail to identify problems or kill off the cell
Apoptosis- Cell regulated death. Lysosomes will burst instantly killing the cell.
Ex. White blood cells

5. Cancer
Tumour – a rapidly growing mass of cells

6. 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

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

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

9. Causes of Cancer
Carcinogens – are environmental factors that cause mutations.
Tobacco
Viruses
Plastics
Radiation
X-rays
Sunlight

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

11. Smoking and Cancer What else does smoking affect?? Lungs Lips Tongue
Fingers
Trachea
throat

12. 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)

13. Cancer Fighting ‘Super Foods’