Vocabulary
Short Ans.
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Molecules move from high to low concentration.
Define Diffusion
Category 1
Question 1
Waste product of metabolism.
Define Urea
Category 1
Question 2
Control internal salt concentration.
Define osmoregulators
Category 1
Question 3
Internal salt concentration changes w/salinity of
water.
Define Osmoconformers
Category 1
Question 4
Fish with skeleton made of cartilage.
Define Cartilaginous Fish
Category 1
Question 5
Fish, Bird, Mammal, Reptile
Give one example of an
osmoregulator.
Category 2
Question 1
Invertebrates, sea cucumbers, mollusks, jellies,
etc.
Give an example of an
osmoconformer?
Category 2
Question 2
Gills or Urine
How would an
osmoregulator get rid of
excess salt
Category 2
Question 3
Drink a lot, excrete salt (gills), excrete little salty
urine
How do marine fish deal
with osmoregulation?
Category 2
Question 4
They don’t drink, they absorb salt in gills, and they
urinate a lot
How do fresh water fish deal
with osmoregulation?
Category 2
Question 5
Lose mass, shrink
Describe what would
happen to a potato cell in
15% salt solution?
Category 3
Question 1
Gain mass, swell
Describe what would
happen to a potato cell in
100% water?
Category 3
Question 2
Where the graph intersects zero change in mass.
Explain how you would
determine the solute
concentration in the cell?
Category 3
Question 3
Put potato in solution with concentration on zero
mass gain.
Explain an experiment that
would test your prediction of
how to determine the solute
concentration in the cell?
Category 3
Question 4
Concentration of solute (salinity)
Explain the x axis on the
potato core graph
Category 3
Question 5
Organisms that can swim against the current.
What are nekton
Category 4
Question 1
Diffusion of water across a semipermeable
membrane
What is osmosis?
Category 4
Question 2
Less water, more solute, or less water than other
side of membrane.
What does Hyperosmotic
mean?
Category 4
Question 3
Glands releasing waste.
Define excrete
Category 4
Question 4
Equilibrium, equal solute on both sides of the
membrane
Define iso-osmotic
Category 4
Question 5