3. VocabularyShort Ans.GraphMore Vocab. 100 200 400 300 400 300 200 400 200 100 500 100

4. Define Diffusion Molecules move from high to low concentration. Category 1 Question 1

5. Define Urea Waste product of metabolism. Category 1 Question 2

6. Define osmoregulators Control internal salt concentration. Category 1 Question 3

7. Define Osmoconformers Internal salt concentration changes w/salinity of water. Category 1 Question 4

8. Define Cartilaginous Fish Fish with skeleton made of cartilage. Category 1 Question 5

9. Give one example of an osmoregulator. Fish, Bird, Mammal, Reptile Category 2 Question 1

10. Give an example of an osmoconformer? Invertebrates, sea cucumbers, mollusks, jellies, etc. Category 2 Question 2

11. How would an osmoregulator get rid of excess salt Gills or Urine Category 2 Question 3

12. How do marine fish deal with osmoregulation? Drink a lot, excrete salt (gills), excrete little salty urine Category 2 Question 4

13. How do fresh water fish deal with osmoregulation? They don’t drink, they absorb salt in gills, and they urinate a lot Category 2 Question 5

14. Describe what would happen to a potato cell in 15% salt solution? Lose mass, shrink Category 3 Question 1

15. Describe what would happen to a potato cell in 100% water? Gain mass, swell Category 3 Question 2

16. Explain how you would determine the solute concentration in the cell? Where the graph intersects zero change in mass. Category 3 Question 3

17. Explain an experiment that would test your prediction of how to determine the solute concentration in the cell? Put potato in solution with concentration on zero mass gain. Category 3 Question 4

18. Explain the x axis on the potato core graph Concentration of solute (salinity) Category 3 Question 5

19. What are nekton Organisms that can swim against the current. Category 4 Question 1

20. What is osmosis? Diffusion of water across a semipermeable membrane Category 4 Question 2

21. What does Hyperosmotic mean? Less water, more solute, or less water than other side of membrane. Category 4 Question 3

22. Define excrete Glands releasing waste. Category 4 Question 4

23. Category 4 Question 5 Define iso-osmotic Equilibrium, equal solute on both sides of the membrane