Introduction
- Cancer harms the body when altered cells divide uncontrollably to form lumps or masses of tissues called tumors.
- Leukemia is the only cancer that is different because it prohibits normal blood function by abnormal cell division in the blood stream.
- Metastasis is what kills the cancer patient. Cells from a tumor separate and find their way into the lymph system and spread throughout the body.
- Gene mutations that occur after birth are what causes cancer, most are not inherited.
- Cancer occurs as cells divide or because damage of DNA caused by certain envriromental causes.
- The extra cells due to cancer cause tissues to form creating a tumor
Task
Read this article and answer these questions.
http://www.livescience.com/58393-cancer-caused-by-random-dna-mistakes.html
1.What is the fraction of mistakes made due to random DNA test ?
2. What were the 2 previous thoughts that were the main causes of cancer ?
3. What percent of diagnosed cancer was due to random mistakes ? inherited mutations ? factors of peoples lifestyles ?
4. What causes 65% of all lung cancers ?
5. In trying to prevent cancer what should be done ?
Process
Watch the video and answer the questions.
1. what is the fraction of men and women that will be diagnosed with cancer ?
2. What are cancer cells ?
3. Where can cancer occur ?
4. What is cancer ?
5. What are the types of therapies a cancer patient has to go through ?
Evaluation
when you complete reading the article and watching the video , play these games on the website below to better your education on the different types of cancers.