This week is a continuation of last week's class. We will finish the lab on "Diagnosing Diabetes" and will host a guest speaker.
Remember the concept of HOMEOSTASIS, which we can also relate to the study of the earth as a system of systems.
Remember the concept of HOMEOSTASIS, which we can also relate to the study of the earth as a system of systems.
Graphing Practice (2 handouts)
Diagnosing Diabetes (activity, images)
- The Case -- listen and read along; think of clarifying questions, if any
- What do you already know / think you know / wonder about diabetes?
- Core Concepts -- which of these already make sense? Which words are unclear as yet?
- The Tasks -- listen and read along, thinking of clarifying questions
- Complete each of the three sections with your team. Check with me at the end of each section before going on the the next.
- At the end -- compare results. Revisit and add to list of what we know. Were any questions answered? What are new questions?
Diagnosing Diabetes--Core Concepts
- To maintain homeostasis the internal environment must be kept stable - within normal limits that are favorable for cell activities.
- Homeostasis in an organism is constantly threatened. Failure to respond effectively can result in disease or death.
- Organisms detect and respond to change in a variety of ways both at the cellular and at the organismal level.
- Blood sugar levels are maintained by insulin from the pancreas.
- Receptor molecules and hormones play an important role in the interactions between
cells.
- If hormone signals are blocked, cell communication is disrupted and the organism’s stability is affected.
Information on Diabetes
From the BBC:
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- Boston Museum of Science: On the Path to a Pill for Diabetes (LISTEN to a conversation with "a researcher who is looking at the inner workings of the cells that produce insulin in our bodies -- the same cells that cause diabetes if they aren't working properly.")
- Boston Museum of Science: Diabetes in Diverse Populations (LISTEN to a conversation with doctors from the Joslin Diabetes Center about "the prevalence of diabetes in various ethnic populations," and "why the incidence of type II diabetes is increasing in these populations.")