Question: You encounter a human-like extraterrestrial at the gym, which is remarkable for numerous reasons! And the best news is that they are as excited to learn about your human physiology as you are to learn about their extraterrestrial physiology. Because you're so excited about respiratory physiology right now, you start looking at how their oxygen-binding molecule ("xenoglobin"; equivalent of hemoglobin) changes in its oxygen saturation with different partial pressures of O2. You know that, at rest, our human hemoglobin is 100% saturated near the alveoli and 80% saturated after passing through the systemic capillaries and moving back into the veins. By contrast, your new extraterrestrial friend's xenoglobin molecule is 100% saturated near their alveoli and 60% saturated after passing through their systemic capillaries and moving back into the veins. What does this tell you about how our hemoglobin compares to their's?
Question: You encounter a human-like extraterrestrial at the gym, which is remarkable for numerous reasons! And the best news is that they are as excited to learn about your human physiology as you are to learn about their extraterrestrial physiology. Because you're so excited about respiratory physiology right now, you start looking at how their oxygen-binding molecule ("xenoglobin"; equivalent of hemoglobin) changes in its oxygen saturation with different partial pressures of O2. You know that, at rest, our human hemoglobin is 100% saturated near the alveoli and 80% saturated after passing through the systemic capillaries and moving back into the veins. By contrast, your new extraterrestrial friend's xenoglobin molecule is 100% saturated near their alveoli and 60% saturated after passing through their systemic capillaries and moving back into the veins. What does this tell you about how our hemoglobin compares to their's?
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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Question: You encounter a human-like extraterrestrial at the gym, which is remarkable for numerous reasons! And the best news is that they are as excited to learn about your human physiology as you are to learn about their extraterrestrial physiology. Because you're so excited about respiratory physiology right now, you start looking at how their oxygen-binding molecule ("xenoglobin"; equivalent of hemoglobin) changes in its oxygen saturation with different partial pressures of O2. You know that, at rest, our human hemoglobin is 100% saturated near the alveoli and 80% saturated after passing through the systemic capillaries and moving back into the veins. By contrast, your new extraterrestrial friend's xenoglobin molecule is 100% saturated near their alveoli and 60% saturated after passing through their systemic capillaries and moving back into the veins.
What does this tell you about how our hemoglobin compares to their's?
Transcribed Image Text:The oxygen-binding
molecule in their
circulatory system is
better than ours
The partial pressure of 02
in their alveoli is higher
than ours
They deliver a larger share
of oxygen to their tissues
at rest
YES
The oxygen-binding
molecule in their
circulatory system is
worse than ours
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