29 Jul WHICH WOULD BE THE BEST REGIMEN TO REBUILD THE LOST BONE TISSUE?
FORM A
1. Which form of the exam do you have?
A. A
B. B
2. Scientists recently discovered a drug that can turn off the oncogene myc in mice with liver
tumors. You would expect this to:
A. stop or slow the rate of cancer progression
B. have no effect on cancer progression
C. speed up the rate of cancer progression
3. Women experience the symptoms of osteoporosis more acutely than men. Why is this true?
A. Women have less bone mass and produce less estrogen later in their lives, which
accelerates calcium loss.
B. Women have less muscle mass and don’t exercise as much.
C. Men don’t produce estrogen, so they don’t rely on it as much as women do.
D. Men take in more calcium in their diet, so they can’t get osteoporosis.
4. Tamoxifen is a drug that fits into the estrogen receptors. When this happens in breast tissue,
it blocks the effects of estrogen. Based on what you know about the relationship between
estrogen and breast cancer, you would predict that this would:
A. help prevent the development of breast cancer in women who are at
great risk
B. starve breast tumors
C. cause the tumor to metastasize
D. stimulate the development of blood vessels that nourish the tumor
E. none of the above
5. Astronauts returning to Earth from an extended stay in space have to be extremely careful or
they could break a bone. It takes several weeks to restore normal bone strength. Which would
be the best regimen to rebuild the lost bone tissue?
A. Nothing special is needed, just lie around and watch TV.
B. Hit the gym and do a few weeks of heavy weight lifting.
C. Several weeks of swimming will rebuild all lost bone mass.
D. Start with walking and build up to jogging, with an extra regimen of light weight
lifting in the gym.
6. Exercise can prevent ovulation. Based on what you know about the relationship between
estrogen and breast cancer, how would you predict the risk of breast cancer would be altered
in a woman who exercised regularly from the time she was a teenager into her 40s?
A. Her risk would be increased.
B. Her risk would be decreased.
C. It would have no effect on her risk of breast cancer.
1
7. Indicate the CORRECT choice statement about fibrocystic breast disorder.
A. Fibrocystic disorder is caused by a virus that causes the overproduction of estrogen.
B. Fibrocystic disorder usually decreases a woman’s risk of developing breast cancer.
C. Fibrocystic disorder occurs either when the breast tissue is over-stimulated to divide
or when the reabsorption of tissue is inadequate.
D. Fibrocystic disorder is more common after a woman reaches menopause.
8. When p53 detects genetic damage, it normally:
A. stimulates the S phase of the cell cycle during which DNA is copied.
B. triggers programmed cell death
C. causes the cell to metastasize.
D. lengthens telomeres
9. During metastasis, when cancer cells spread through the body, they break free from the
original tumor and travel in the blood stream. What do normal, healthy cells do if they break
free from their normal surroundings?
A. They increase their rate of cell division.
B. They destroy their telomeres.
C. They begin meiosis.
D. They stop dividing.
10. Indicate the choice that includes only CORRECT statements:
Statements:
1. Many women still get their periods after they reach menopause.
2. After menopause, a woman’s level of estrogen is lower than it was when she was in
her 30s..
3. The possibility of developing osteoporosis becomes a greater concern for women
after they reach menopause.
4. During the time when a woman is approaching menopause she may experience
frequent hot flashes.
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