Transcript Cancer – The Cell Cycle Gone Wrong

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Cancer - information and treatment
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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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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
Cancerous Cell Division.mht
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A tumour is a mass of cells that continue to
divide and increase in number for no benefit
to the body
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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
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
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Contains 4000 chemicals and 50 of them are
carcinogens
the most common cause of lung cancer
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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
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Skin cancer is caused by ultraviolet radiation
(UV) from the sun
UV causes mutations in the skin cells
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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
UV Skin Animation
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lead in your lipstick?
carcinogens in your cleanser?
Story of Cosmetics « The Story of Stuff Project
Lousy Labels - Marketplace