A graph is plotted between `pO_(2)` and percentage
saturation of Hb with `O_(2)` from
Hb?

Assertion : A sigmoid curve is obtained when percentage saturation of haemoglobin with O_(2) is plotted against the PO_(2) . Reason : Every 100 mL of oxygenated blood can deliver around 5mL of O_(2) to the tissues under normal physiological conditions.

The curve obtained when percentage saturation of Hb with O_2 is plotted against pO_2 is

The curve obtained when percentage saturation of Hb with O_2 is plotted against pO_2 is

Which factors affect the dissociation of O_(2) from Hb?

Which factors affect the dissociation of O_(2) from Hb?

What will be the change in graph depicting percentage saturation of oxyhaemoglobin and pO_(2) (mm of Hg) with increase in H^(+) concentration in blood ?

Haemoblobin is a Fe containing protein responsible for oxygen transport in the blood. The curves given below indicate the percentage suturation of haemoglobin by O_(2) as a funcion of partial pressure of O_(2) . Which of the following statement/s is/are correct for the given curves? I. In presence of CO_(2) , higher P_(O_(2)) is needed for a given percentage saturation. II. In presence of CO_(2) , lower P_(O_(2)) is needed for a give percentage saturation. III. The maximum percentgae saturation is not affected by the presence of CO_(2) IV. In the absence of CO_(2) , maximum saturation of haemoglobin occurs at lower p_(O_(2)) .

The percentage of Hb in RBC is :