Today, we finished discussing the circulatory system and started our last topic for this unit, homeostasis. We discussed a specific example of a negative feedback loop that maintains a constant temperature in your body.
Homework
For homework, you will read about the negative feedback loop that maintains a constant blood glucose level in your body. Please read p.768 in your text and answer the questions that follow in your journal:
1) What is glucose and why is it in your blood?
2) Insulin and glucagon are hormones. Flip to page 758 and read the section "Hormones are Chemical Signals." Referring to figure 42.2, explain what a hormone is and how it works.
3) Copy the diagram of the feedback loop on p.768 into your notes. Using the terminology we discussed in class, label the SENSOR and EFFECTORS.
4) What does it mean that insulin and glucagon are antagonistic hormones?
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