Basic Info for Ch 45

Ch 45 – Hormones and the Endocrine System

1. What is a hormone?
2. What is the difference between endocrine glands and exocrine glands (refer back to animal nutrition)?
3. When a particular hormone is released, why aren’t all cells in the body affected? (answer is in the overview of the chapter)
4. Go to the textbook website: http://wps.aw.com/bc_campbell_biology_8ap/ , and go to Ch 45. Under section 45.1, go through “Activity: Peptide Hormone Action” and “Activity: Steroid Hormone Action”. What are the differences in the ways these 2 types of hormones affect cells? (This is also described in section 45.2.)
** In answering the next 3 questions, you should include how these 3 glands interact with each other. **
5. Where is the hypothalamus located? Describe its function.
6. Where is the posterior pituitary located? Describe its function.
7. Where is the anterior pituitary located? Describe its function.
8. For the next 2 questions, we’ll focus on the classic hormone examples of insulin and glucagon. To describe each hormone, include: the gland where it is produced, its target(s), its action (effect) at the target, and its regulation (what regulates its production/secretion, in other words, what it is produced or secreted in response to).
9. Connect back to Ch 40! Explain how the insulin/glucagon pathway is an example of negative feedback.