Question

Combining of haemoglobin with o2 in lungs can be promoted by

Answer 1

Answer:

Globin has four polypeptide chains each associated with one heme group, and the iron present in heme binds with oxygen. So, eachhemoglobin molecule can carry four oxygenmolecules.

Explanation:

When hemoglobin is saturated with oxygen, its affinity for carbon dioxide decreases. Any carbon dioxide combined with hemoglobin (6) dissociates and diffuses out of the red blood cell (7), through the plasma and into the alveoli. In other words, oxygenloading facilitates carbon dioxide unloading fromhemoglobin.

Answer 2

Answer:

increasing oxygen concentration in blood

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