UT
BIO 361T -
10.1 Intro to Respiratory Systems lecture (1)
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Smallest animals use O2 gradient 10 1 Respiratory Systems Larger animals have circulatory systems largest animals have respiratory organs 1 10 29 14 Graham s Law for each gas Q Sgas MW Fick s Law Q DA C1 C2 L Partial pressures of O2 and CO2 in exhaled air or water Respiratory surface area scales with body size Respiratory surface thickness differs by taxa Fick s Law Q DA C1 C2 L Ideal gas law for each gas PV nRT n V P RT Dalton s Law of par7al pressures Ptotal Pgas1 Pgas2 Henry s Law for each gas G Pgas x Sgas 2 10 29 14 Hb oxygenation depends on pH CO2 temperature Hb shows cooperative binding between subunits 3 10 29 14 Regulating bulk flow supplements diffusion 4 10 29 14
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