Cell Membrane Lesson 9/25/07
September 24, 2007
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Cell Membrane Lesson 9/25/07
September 24, 2007
Breast Cancer Story - New York Times 9/17/07
September 17, 2007
Go to http://www.nytimes.com/2007/09/16/health/16gene.html
New York Times 9/17/07
Cancer Free at 33, but Weighing a Mastectomy
- What is a mammogram?
- What did a DNA test reveal for Ms. Lindner?
- What is cancer?
- Go to wikipedia.com. What is a mastectomy?
- If she has a mastectomy, her risk of breast cancer will be reduced by what percent?
- What is chemotherapy?
- Why does Ms. Lindner calls herself a previvor?
- Ms. Lindner’s family all had different opinions about whether she should have the surgery. What was the opinion of her:
- father?
- Sister?
- Aunt?
- Cousin?
- Deborah Lindner’s mother asked herself a question: “What if taking _________________________________________________________________________________________________________________?
- What is the effect of having a defective copy of gene BRCA1?
- How many American women are estimated to carry a mutation in BRCA1 or BRCA2 have been tested?
- What fraction of women that test positive for BRCA1 opt for preventive mastectomies?
- Why do many women have their ovaries removed?
- Some take _______ to ward off breast cancer. Others hope that frequent doctor ___________ will catch the cancer early, or that they will beat the odds.
- Why is Deborah a little bit jealous of her sister?
- Why doesn’t Deborah want to have her breasts removed and replaced by fake ones?
- BRCA-related breast cancer usually strikes before age ____. Ovarian cancer, which strikes about ___ percent of BRCA1 carriers, is rarely detected early and is fatal _________-______________ of the time.
- Doctors recommended that Deborah have her ovaries removed by age _____. Menopausal hormone drugs would have raised the risk of cancer again, unless she had her __________ removed first.
- Once Deborah and her mother researched her family tree, she found out that a cousin had breast cancer at age ____. Another cousin got her first diagnosis at _____, and that cousin’s daughter had recently learned she had the disease at _____. For this reason, Mrs. Lindner, Deborah’s mother, recommended that she have the surgery “as ________ ___ __________.”
- Ultimately Deborah decides to have the surgery, the preventive mastectomy. As a girl, what would you do in her position? What would you recommend your mother do? As a boy, what would you recommend your mother or sister do?
Lesson 9/17/07
September 17, 2007
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Cell Lesson 9/11/07
September 11, 2007
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SCROLL DOWN TO LESSON 9/7/07 - DO THIS LESSON LATER!! “Revealing Trans Fats”
September 7, 2007
Go to http://www.fda.gov/FDAC/features/2003/503_fats.html
1. Consumption (eating) saturated fat, trans fat, and cholesterol raises ______-____________ __________________ (LDL), or “bad cholesterol” levels, which increases the risk of _______________ _________ disease.
2. How many Americans have CHD? How many die each year of CHD?
3. Trans fat is made when food manufacturers add _______________ to vegetable oil, a process called __________________.
4. What are the two reasons that manufacturers use the process of hydrogenation?
5. Trans fat can be found in vegetable shortenings, some __________________, crackers, __________, snack foods, and other foods made with or fried in partially ____________________ oils.
6. Fat is a major source of _____________ for the body and aids in the absorption of vitamins ___, ___, ___,and ___ and carotenoids. When eaten in ________________, fat is important for proper growth.
7. While ___________________ fats are beneficial when consumed in moderation, _________________ and __________ fats are not.
8. When comparing foods, look at the Nutrition Facts panel, and choose the food with the lower amounts of _________________ fat, _________ fat, and ___________________.
9. Look at the data table called
a. Which food has the most saturated fat per common serving size? saturated fat? trans fat? cholesterol?
b. Which is the second worst in terms of total fat, saturated fat, and trans fat?
c. Which is better for you, stick margarine or margarine in a tub?
10. When looking at the Nutrition Label, it is best o choose foods low in saturated fat and cholesterol, so use the general rule of thumb that ___ percent of the Daily Value or less is _____ and ____ percent or more is _______.
11. a. Choose alternative fats. Replace saturated and trans fats in your diet with _________________ and __________________ fats. These fats do not raise ____ cholesterol levels and have health benefits when eaten in moderation. Sources of monounsaturated fats include ________ and ________ oils.Sources of polyunsaturated fats include ___________ oil, ________ oil, _____________ oil and foods like _______.
b. Choose vegetable oils (except _______________ and _______ ___________ oils) and ______ margarines (liquid, tub, or spray) more often because the combined amount of saturated fat and trans fat is lower than the amount in solid shortenings, hard margarines, and animal fats, including butter.
c. Consider _______. Most fish are lower in _______________ fat than meat. Some fish, such as mackerel, sardines, and salmon, contain _________ - ____ __________ acids, which are being studied to determine if they offer protection against heart disease.
d. Choose _______ meats, such as poultry without the ______ and not fried and lean beef and pork, not fried, with visible fat ___________.
12. THIS ANSWER IS NOT ON THE WEB SITE: Look in your notes packet to find out what “unsaturated” means. What do you think “monounsaturated” and “polyunsaturated” mean?
13. Number 11.c. about talks about fatty acids. Look in your notes packet. Fatty acids combine with
g __ __ __ __ __ __ __ to make a macromolecule called a __ __ __ __ __. Fats are __ __ __ __ __.
Lesson 9/7/07
September 7, 2007
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When you finish the one above, click here
Honors Biology students, you must do the following internet assignments too (other classes - 2nd, 3rd, and 6th periods, you can do this work for 10 points EXTRA CREDIT): Click here
