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
EPICS Food: Tuesday, 1.26.10The Endocrine System: Hormones
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
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 ≠ QualityMost people presented high-quality data but not
high-quality analysis.
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
EPICS FOOD:THE ENDOCRINE SYSTEMWeek of January 25, 2010
Human Body Systems:Connected by the Circulatory System
Endocrine System
Function: Communicate
between different organs of the body
Using hormones – signal molecules that travel through the bloodstream
Hormone Signaling – 3 Steps
1. Hormone is made within endocrine cells (inside glands or other organs).
2. Hormone is released into bloodstream and travels to target cells.
3. Hormone binds to target cells and triggers a response.
1.2.
3.
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
Example: Anti-Diuretic Hormone
Yellower, low-volume urine
Example: Adrenaline (a.k.a. Epinephrine)The “Fight or Flight” Hormone
Skeletal Muscles
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
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
More Hormone Examples…
More Hormone Examples…
More Hormone Examples…
Homework:Finish your summary of the Diabetes-Obesity article.
Do Now:Make a chart like this in your notebook:
EPICS Food: Thursday, 1.28.10Food-Related Hormones… in the Context of Scientific Literacy
Hormone Ghrelin Leptin Peptide YY
Insulin Glucagon
Released from
Stomach Fat tissue Small intestine
Pancreas Pancreas
Triggered by
Time since last meal (& other things)
Increase in amount of body fat
Eating Rise in blood sugar
Blood sugar too low
Target Organs
Brain Brain Brain Liver, brain, and muscle cells
Liver
Effects on Body
Feelings of hunger
Suppresses appetite (feel less hungry)
Feel less hungry
• Lowers appetite• Makes cells take in glucose blood sugar goes down
• Makes liver cells release glucose into bloodstream blood sugar goes up
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
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
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.
EPICS Food: Monday, 2.1.10Wrap-Up: Links between Obesity & Diabetes
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