Question

With reference to the oxyhaemoglobin dissociation curve, select the INCORRECT nogo statement/statements.
I. 100% saturation is very common.
II. 95 - 97% saturation takes place at ppO₂ = 100 mm Hg in alveoli.
III. At 30 mm Hg of ppO₂, only 50% saturation can be maintained.
IV. The oxyhaemoglobin dissociation curve is J-shaped.
Select the correct option.

विकल्प

• I and IV only

• II and III only

• I, II and III only

• IV only

Answer 1

I and IV only

Explanation:

I. 100% saturation is very rare.
IV. The oxyhaemoglobin dissociation curve is sigmoidal.