Question

Oxyhaemoglobin is formed in the
a. Lungs
b. Right auricle
c. Spleen
d. Kidney

Answer 1

Hint: Hemoglobin is the protein found in the red blood cells, where it is useful for carrying the oxygen, in blood the oxygen forms the bond with hemoglobin and form the Oxyhaemoglobin, the bond is stable and reversible.

Complete answer:
- The relation of oxygen and hemoglobin mainly depends on the saturation of oxygen and the tension of oxygen. And this relation is said to be oxygen and hemoglobin affinity.
- Ph, temperature, and pressure also play an important role in the oxygen and hemoglobin affinity.
- Each hemoglobin contains the metalloprotein, which in turn contains the four subunits, each subunit contains the one atom of them, so four oxygen molecules attach to the hemoglobin in general.
- If all heme units are bound to oxygen, then it is said to be that hemoglobin is saturated, if only some units are bound then it is said that hemoglobin is partially saturated.
- Oxygen and hemoglobin association is commonly said in the form of an association curve, usually, oxygen binds to hemoglobin in the case where, the partial pressure of oxygen is more, usually more oxygen is found in the lungs, so Oxyhaemoglobin is formed in the lungs.
- In the case of the body parts, the partial pressure of oxygen is less than that of lungs, so this Oxyhaemoglobin, which formed in the lungs dissociates in the body tissues and oxygen is supplied to the tissue.
- So from the above explanation, it is said to be Oxyhaemoglobin and is formed in the lungs.

Hence, The correct answer is option (A).

Note: In comparison to adult hemoglobin and fetal hemoglobin, fetal hemoglobin has more affinity with the oxygen than in the adults. Along with the partial pressure, other factors that affect this association are pH and temperature.