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12 Cards in this Set
- Front
- Back
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Most cells stop dividing when they encounter another cell. This is called
a. feedback inhibition b. contact inhibition c. metastasis d. checkpoint inhibition |
b. contact inhibition
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What kind of gene is damaged in cells that become cancerous?
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checkpoint genes or genes that control cell division
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Name 3 types of environmental carcinogens
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chemicals, radiation, viruses
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What doesn't chemotherapy and radiation damage normal cells?
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radiation disrupts cells that are dividing, cancer cells divide more rapidly than other cells so they tend to be affected more than normal cells. Normal cells are in fact affected to some extent; this is why people on chemo temporarily lose their hair.
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What is the leading type of cancer death in men; and what is it in women?
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same for both men and women: lung cancer
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Have mortality rate for most kinds of cancer increased or decreased over the last 5 years?
a. increased b. decreased |
b. decreased
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What is the most frequent kind of cancer?
a. lung b. colon c. skin |
c. skin
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What kind of mutation occurs in skin cells that become cancerous?
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mutation in suicide genes that would normally cause a cell to self-destruct if it became damaged
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What environmental factor causes more cancer deaths than any other?
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smoking
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Has smoking by Americans increased or decreased over the last few decades?
a. increased b. decreased |
b. decreased
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If you get skin cancer, is it more likely due to the bad sunburn you got last year or the bad sunburn you got 20 years ago?
a. last year b. 20 years ago |
b. 20 years ago
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The longer you smoke the greater your risk of lung cancer. If you quit smoking your risk of lung cancer
a. decreases b. does not increase any further but does not decline |
a. decreases
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