Haemoglobin is an amazing molecule, as it allows vertebrates to transport gases from the environment to...

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Biology

Haemoglobin is an amazing molecule, as it allows vertebrates totransport gases from the environment to the tissues. To boot, bloodchanges its oxygen-binding characteristics in response to theanimalâ€™s external AND internal environment. How does this happen?What are the advantages of this â€œshape-shiftingâ€ ability? How doesO2 affinity of Hb compare between mammals adapted to hypoxia andthose in normoxia? How does it compare between sedentary andathletic species? Explain why. Some Antarctic fish lack haemoglobincompletely. Their blood is composed of plasma and a few white bloodcells. How are these fishes able to survive and succeed in theirenvironment? Explain.

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The change in the physiological conditions leads to the change in the binding affinity of hemoglobin towards oxygenFor example the increasing in temperature causes the decrease in the affinity of hemoglobin to bind with oxygen Decrease in pH also lowers the oxygen biding affinity of hemoglobinIn this way any variation in the body internal environment or external environment it leads to the change in the affinity of hemoglobin leads to the variation in the oxygen binding capacity Advantage See Answer

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