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nent, explain why crocodiles can hold their breath so much longer than humans

nent, explain why crocodiles can hold their breath so much longer than humans

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Crocodiles are able to remain under water for more than one hour without surfacing to breathe and often kill their prey by drowning it. Below are the plots of fraction oxygen saturation versus log pO2 for human (upper panel) versus crocodile Hemoglobin (lower panel). The fractional saturations were determined in the absence (open symbols) and in the presence of 5% CO2 (filled symbols). Using the plot as basis for argument, explain why crocodiles can hold their breath so much longer than humans. (Figure adopted from N. Hennakao Komiyama, et al. Nature 1995) 100 Human Hb 8아 6아 + 5% CO, Crocodile Hb 8아 60- 40 •+ 5% CO2 log pO, (mm Hg) Oxygen saturation (%) Oxygen saturation (%)
Transcribed Image Text:Crocodiles are able to remain under water for more than one hour without surfacing to breathe and often kill their prey by drowning it. Below are the plots of fraction oxygen saturation versus log pO2 for human (upper panel) versus crocodile Hemoglobin (lower panel). The fractional saturations were determined in the absence (open symbols) and in the presence of 5% CO2 (filled symbols). Using the plot as basis for argument, explain why crocodiles can hold their breath so much longer than humans. (Figure adopted from N. Hennakao Komiyama, et al. Nature 1995) 100 Human Hb 8아 6아 + 5% CO, Crocodile Hb 8아 60- 40 •+ 5% CO2 log pO, (mm Hg) Oxygen saturation (%) Oxygen saturation (%)
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