respiratory systems in animal phyla & gas exchange in animals at cellular level

musicmon

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11 years ago

respiratory systems in animal phyla & gas exchange in animals at cellular level

1.Explain the evolutionary advancement of respiratory systems in animal phyla in terms of size of the respiratory surface. As part of your answer, discuss the individual adaptations of four animal phyla.

2.What factors regulate gas exchange in animals at the tissue/ cellular level?

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brunji

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11 years ago

Quote from: musicmon (11 years ago)

The rate of diffusion is proportional to the surface area over which a gas is diffusion (as well as some other variables...See Fick's Law of Diffusion for more info!)

As for your phyla... For arthroprods - try googling Malphigian Tubules. For cnidarians - the gastrovascular cavity. Chordates - so many good ones to choose from! Fish (gills), Humans (lungs), etc.

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vanmeter

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11 years ago

Quote from: musicmon (11 years ago)

2.What factors regulate gas exchange in animals at the tissue/ cellular level?

Concentration of the gases within the tissues vs. concentration of those gases in the capillaries (passive diffusion).

If we're talking about humans and oxygen, then concentration of the oxygen at the tissues vs. the affinity hemoglobin has for oxygen.

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musicmon Author

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11 years ago

Thank you guys so much! That was really helpful and I got full points on my assignment!!

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gohar90211

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11 years ago

Quote from: musicmon (11 years ago)

Thank you guys so much! That was really helpful and I got full points on my assignment!!

Could you post all the solutions to that assignment? Crying Face

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