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Do Now: (in your notebook) What is a hormone? What does it do?

EPICS Food: Tuesday, 1.26.10 The Endocrine System: Hormones. Do Now: (in your notebook) What is a hormone? What does it do? What are some examples of hormones that you know of? Homework: Complete the Hormone Worksheet. Today’s Objectives:

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Do Now: (in your notebook) What is a hormone? What does it do?

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  1. EPICS Food: Tuesday, 1.26.10The Endocrine System: Hormones • Do Now: (in your notebook) • What is a hormone? What does it do? • What are some examples of hormones that you know of? • Homework: • Complete the Hormone Worksheet. • Today’s Objectives: • Explain what a hormone is and how it works in the body • Describe two examples of hormones and their effects

  2. Thoughts on the Midterm Exam Project • What most people did well: • Gathering data • Using class time effectively • What those who failed didn’t do: • Analyze the data to demonstrate in detail what you learned this year • Respond thoroughly to each project component listed on the rubric • Many people also struggled with… • Time management outside of class • Project components not completed by suggested deadlines • Individual Project Parts (I and II) not finished by exam time

  3. Thoughts on the Midterm Exam Project • Student complaints: • “I would have rather had an exam…” You already know how to take exams. This is a project-based class, where you learn to apply knowledge to real-world problems. This is a much more useful skill for jobs & life than taking exams. • “I wrote 8 pages…” Quantity ≠ Quality Most people presented high-quality data but not high-quality analysis.

  4. Thoughts on the Midterm Exam Project Next Steps: • Revisions or completion of revision chart (emailed) • Due by 4:30 pm sharp this afternoon (grades due tomorrow @ 8 am!) • Treat this as a learning experience… • Time management (how can I help?) • Using resources (notes, data provided) and applying info to a given problem/project • Reading rubric carefully • Knowing when and how to ask for help

  5. Epics food:The endocrine system Week of January 25, 2010

  6. Human Body Systems:Connected by the Circulatory System

  7. Endocrine System Function: • Communicate between different organs of the body • Using hormones – signal molecules that travel through the bloodstream

  8. Hormone Signaling – 3 Steps • Hormone is made within endocrine cells (inside glands or other organs). • Hormone is released into bloodstream and travels to target cells. • Hormone binds to target cells and triggers a response. 1. 2. 3.

  9. Example: Anti-Diuretic Hormone • Released from: Hypothalamus (sensor in the brain) • Triggered by: Dehydration (low water levels in blood) • Target Organs: Kidneys • Effects: • Kidneys keep more water in the blood • Urine becomes more concentrated, smaller in volume Yellower, low-volume urine

  10. Example: Adrenaline (a.k.a. Epinephrine)The “Fight or Flight” Hormone • Released from: Adrenal glands (just above kidneys) • Triggered by: Immediate stress! • Target Organs & Effects: • Blood vessels in skeletal muscle  More blood to muscles • Blood vessels in digestive tract  Less blood to stomach & intestines • Liver cells  Release glucose into bloodstream for quick energy • Heart muscle  Raise heart rate and blood pressure Skeletal Muscles • Overall Effects: • Heart pumping, BP up, muscle have lots of sugar and oxygen to make ATP and react fast. • Less blood to digestive organs so as not to waste energy there

  11. More Hormone Examples…

  12. More Hormone Examples…

  13. More Hormone Examples…

  14. EPICS Food: Thursday, 1.28.10Food-Related Hormones… in the Context of Scientific Literacy • Homework: Finish your summary of the Diabetes-Obesity article. • Do Now: Make a chart like this in your notebook:

  15. Agenda & Objectives • Today’s Objectives: • Explain how hormones help to regulate blood-sugar levels and feelings of hunger • Use specific reading strategies to understand non-fiction scientific articles about hunger hormones • Use video to learn the differences between type 1 and type 2 diabetes. • Agenda: • Period 1: Close reading of a hormone-related science article • Period 2: Videos on diabetes; article on obesity & diabetes

  16. Final Reading Assignment for Today • Read the two articles on Obesity & Diabetes • Use the same strategies you used to read the article from the first part of class • On a separate piece of paper, summarize: • The specific main idea of the articles • The steps in the process that link obesity and type 2 diabetes (found in the “Critical Link” article) • The evidence for this discovery (found in the “New Culprit” article) • How you could use this information to engineer a drug that prevents type 2 diabetes

  17. EPICS Food: Monday, 2.1.10Wrap-Up: Links between Obesity & Diabetes • Do Now: • Compile all assignments from last week EXCEPT the recent notes on obesity & diabetes. Turn everything else in. • Think of something startling or annoying that you could do to the person sitting next to you. • Homework: • Circulatory System Reading and Notes • Today’s Objectives: • Illustrate the links between obesity and diabetes.

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