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Do Now – 4 minutes

Do Now – 4 minutes. Define epidemic What do you know about the obesity epidemic in America?. Anatomy. Unit Two: Building Blocks of Life. What are we learning today?. Our goal for today is to learn about the structure and function of lipids Our goal for this YEAR is 80% mastery of material

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Do Now – 4 minutes

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  1. Do Now – 4 minutes • Define epidemic • What do you know about the obesity epidemic in America?

  2. Anatomy Unit Two: Building Blocks of Life

  3. What are we learning today? • Our goal for today is to learn about the structure and function of lipids • Our goal for this YEAR is • 80% mastery of material • 3 point increase on our ACT

  4. Lipids Sources • Commonly known as... FATS • Butter • Cheese • Oils • Peanut butter • Nuts • Fish • Meat

  5. Lipids Roles • Long-term energy storage • Insulation and cushioning • Cell Membranes • Hormones • Cholesterol

  6. Lipids Structure • ALL LIPIDS ARE HYDROPHOBIC (they hate water!) • This is why they don’t mix with water when you go to wash your hands • Three types • Regular lipids • Phospholipids • Steroids

  7. What are lipids made of? • Regular lipids.. • One glycerol group • Three fatty acids

  8. What are lipids made of? • Phospholipids • One glycerol group • 2 fatty acids + 1 phosphate group • Why is this important? • The outside of the cell is hydrophilic (likes water) • The inside of the cell is hydrophobic (dislikes water) • This makes for great MEMBRANES!

  9. What are lipids made of? • Steroids • 4 fused carbon rings • Examples • Cholesterol • Found in cell membranes • Hormones • Testosterone

  10. Lipids Structure • Unsaturated: Double bonds between carbon, liquid at room temp • Polyunsaturated (manydouble bond) • Monounsaturated (only one double bond • Saturated: Single bonds between carbon, solid at room temp, least healthy!

  11. Special Notes • Trans fats unsaturated fats that are HUMAN MADE • Your body doesn’t know how to deal with them! • They are BAD for you!!!

  12. Major Food Sources of Trans Fat for American Adults • (Average Daily Trans Fat Intake is 5.8 Grams or 2.6 Percent of Calories)

  13. Impact of the American diet • This study starts in 1985 – just before you were born

  14. Obesity Trends* Among U.S. AdultsBRFSS, 1985 Source: Mokdad A H, et al. J Am Med Assoc1999;282:16, 2001;286:10.

  15. Obesity Trends* Among U.S. AdultsBRFSS, 1986 Source: Mokdad A H, et al. J Am Med Assoc1999;282:16, 2001;286:10.

  16. Obesity Trends* Among U.S. AdultsBRFSS, 1987 Source: Mokdad A H, et al. J Am Med Assoc1999;282:16, 2001;286:10.

  17. Obesity Trends* Among U.S. AdultsBRFSS, 1988 Source: Mokdad A H, et al. J Am Med Assoc1999;282:16, 2001;286:10.

  18. Obesity Trends* Among U.S. AdultsBRFSS, 1989 Source: Mokdad A H, et al. J Am Med Assoc1999;282:16, 2001;286:10.

  19. Obesity Trends* Among U.S. AdultsBRFSS, 1990 Source: Mokdad A H, et al. J Am Med Assoc1999;282:16, 2001;286:10.

  20. Obesity Trends* Among U.S. AdultsBRFSS, 1991 Source: Mokdad A H, et al. J Am Med Assoc1999;282:16, 2001;286:10.

  21. Obesity Trends* Among U.S. AdultsBRFSS, 1992 Source: Mokdad A H, et al. J Am Med Assoc1999;282:16, 2001;286:10.

  22. Obesity Trends* Among U.S. AdultsBRFSS, 1993 Source: Mokdad A H, et al. J Am Med Assoc1999;282:16, 2001;286:10.

  23. Obesity Trends* Among U.S. AdultsBRFSS, 1994 Source: Mokdad A H, et al. J Am Med Assoc1999;282:16, 2001;286:10.

  24. Obesity Trends* Among U.S. AdultsBRFSS, 1995 Source: Mokdad A H, et al. J Am Med Assoc1999;282:16, 2001;286:10.

  25. Obesity Trends* Among U.S. AdultsBRFSS, 1996 Source: Mokdad A H, et al. J Am Med Assoc1999;282:16, 2001;286:10.

  26. Obesity Trends* Among U.S. AdultsBRFSS, 1997 Source: Mokdad A H, et al. J Am Med Assoc1999;282:16, 2001;286:10.

  27. Obesity Trends* Among U.S. AdultsBRFSS, 1998 Source: Mokdad A H, et al. J Am Med Assoc1999;282:16, 2001;286:10.

  28. Obesity Trends* Among U.S. AdultsBRFSS, 1999 Source: Mokdad A H, et al. J Am Med Assoc1999;282:16, 2001;286:10.

  29. Obesity Trends* Among U.S. AdultsBRFSS, 2000 Source: Mokdad A H, et al. J Am Med Assoc1999;282:16, 2001;286:10.

  30. Obesity Trends* Among U.S. AdultsBRFSS, 2001 Source: Mokdad A H, et al. J Am Med Assoc1999;282:16, 2001;286:10.

  31. In Class Activity • Read article out loud • Make a list of types of fats, how much they should be eaten, and where they come from

  32. Homework • None!

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