Last week, we completed The Case of the Poisoned Picnic!
(It was botulism, due to an improperly cooked green bean casserole that used a contaminated can of green beans.)
This week, as a transition from human body systems to earth systems, we'll examine the concept of HOMEOSTASIS and NEGATIVE FEEDBACK.
By the end of this class, we'll understand what these statements mean:
In order to figure out these statements, we’ll do some readings, a simulation, and an application of what we’re learning to blood glucose regulation.
(It was botulism, due to an improperly cooked green bean casserole that used a contaminated can of green beans.)
This week, as a transition from human body systems to earth systems, we'll examine the concept of HOMEOSTASIS and NEGATIVE FEEDBACK.
By the end of this class, we'll understand what these statements mean:
- Homeostasis, a dynamic equilibrium or steady state, keeps the internal environment within certain limits.
- Feedback mechanisms maintain homeostasis by detecting deviations from the normal state and take corrective actions to return systems to the normal state.
- Disease or death may result if an organism fails to maintain homeostasis.
In order to figure out these statements, we’ll do some readings, a simulation, and an application of what we’re learning to blood glucose regulation.
Online readings (with short quizzes) to explore:
https://www.bbc.com/bitesize/guides/z4khvcw/test
https://www.bbc.com/bitesize/guides/zcdf8mn/revision/1
https://www.bbc.com/bitesize/guides/zxgmfcw/revision/1
https://www.bbc.com/bitesize/guides/zc8qdxs/revision/1
https://www.bbc.com/bitesize/guides/znc6fg8/revision/1
https://hwb.gov.wales/nnest/repository/resource/7b9a1d79-76b2-4c80-948b-2f2da4b57594/en
Khan Academy on Homeostasis (includes a video, article, and quiz)
Just an article (without a quiz):
www.scientificamerican.com/article/what-is-homeostasis/