http://www.ck12.org Chapter 1. Human Biology
- What are three variables affected by homeostasis? What is the normal human range for these variables?
- What is negative feedback? What is a sensor and an effector? How does this relate to homeostasis?
- How does temperature affect enzymes? Why is this important to organisms? How do the enzyme systems of
ectotherms differ from the enzyme systems of endotherms? - How is the body temperature of ectotherms related to environmental temperatures?
- What happens if a fish is exposed to a rapid change in water temperature? What mechanism is involved in this
response?
- Homeostasisat http://www.think-bank.com/iwb/flash/homeostasis.html
- List four internal conditions that organisms regulate?
- What happens to blood flow in your body when your internal temperature increases?
- What happens to blood flow in your body when your internal temperature decreases?
- How does your body react to maintain water levels in your body? What is ADH? What is its function?
- What are the roles of insulin and glucagon? What do they help the body regulate?
Review
- What is homeostasis?
- What is the difference between negative feedback and positive feedback?