Book Reading: Osmosis (pg 186-187)
1. What does it mean to be selectively permeable?
2. What is osmosis?
3. What does “there a net movement of water into the compartment containing concentrated
sugar solution” mean in your own words?
4. Why is “there a net movement of water into the compartment containing concentrated sugar
solution”?
5. What is equilibrium?
6. What does isotonic mean?
7. What does hypertonic mean?
8. What does hypotonic mean?
9. Draw a picture of figure 7-17 and describe what is happening in your own words.
10. What is osmotic pressure?
11. What will happen to a cell surrounded by freshwater?
12. Why are cells in large organisms not in danger?
13. How does the cell wall help the plant deal with osmotic pressure?
14. How does a contractile vacuole help single-celled organism maintain homeostasis?
15. Use figure 7-18 to draw a picture of an animal cell and plant cell in isotonic, hypotonic and
hypertonic solutions.
Animal Cell
Isotonic
Hypotonic
Hypertonic
Review your notes:
Write 5 vocabulary words and define them in your OWN WORDS.
1.
2.
3.
4.
5.
Plant Cell