7th Grade Unit 02: Body Systems and Homeostasis Review

1. 1. The digestive system uses both mechanical and chemical mechanisms to digest food. Categorize the processes of the digestive system as chemical or physical changes. What is an example of when both are happening at once?
2. 2. What is an enzyme? Does it take part in chemical or physical changes?
3. 3. What are the major functions of each organ system. What are their organs? How do they interact with other organ systems?
   1. a. What two human organ systems work together to remove carbon dioxide from cells and the body?
   2. b. What two human organ systems are most responsible for movement?
4. 4. What is the function of the alveoli in the lungs? Which two organ systems are involved in this function?
5. 5. What is the structural hierarchy, from cell to organism?
6. 6. Why might the nervous system be compared with a cell nucleus?
7. 7. Which cell organelle may be compared to the integumentary system?
8. 8. What are glands and hormones?  What organ system do they belong to?
9. 9. What is peristalsis?
10. 10. What is the largest organ in the human body?
11. 11. In what way does the human body maintain homeostasis when it starts to get too warm?