Post on 21-Jan-2016
transcript
Vocabulary Short Ans. Graph More Vocab.
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Define Diffusion
Molecules move from high to low concentration.
Category 1Question 1
Define Urea
Waste product of metabolism.
Category 1Question 2
Define osmoregulators
Control internal salt concentration.
Category 1Question 3
Define Osmoconformers
Internal salt concentration changes w/salinity of water.
Category 1Question 4
Define Cartilaginous Fish
Fish with skeleton made of cartilage.
Category 1Question 5
Give one example of an osmoregulator.
Fish, Bird, Mammal, Reptile
Category 2Question 1
Give an example of an osmoconformer?
Invertebrates, sea cucumbers, mollusks, jellies, etc.
Category 2Question 2
How would an osmoregulator get rid of
excess salt
Gills or Urine
Category 2Question 3
How do marine fish deal with osmoregulation?
Drink a lot, excrete salt (gills), excrete little salty urine
Category 2Question 4
How do fresh water fish deal with osmoregulation?
They don’t drink, they absorb salt in gills, and they urinate a lot
Category 2Question 5
Describe what would happen to a potato cell in
15% salt solution?
Lose mass, shrink
Category 3Question 1
Describe what would happen to a potato cell in
100% water?
Gain mass, swell
Category 3Question 2
Explain how you would determine the solute
concentration in the cell?
Where the graph intersects zero change in mass.
Category 3Question 3
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 3Question 4
Explain the x axis on the potato core graph
Concentration of solute (salinity)
Category 3Question 5
What are nekton
Organisms that can swim against the current.
Category 4Question 1
What is osmosis?
Diffusion of water across a semipermeable membrane
Category 4Question 2
What does Hyperosmotic mean?
Less water, more solute, or less water than other side of membrane.
Category 4Question 3
Define excrete
Glands releasing waste.
Category 4Question 4
Category 4Question 5
Define iso-osmotic
Equilibrium, equal solute on both sides of the membrane