Which of the following is incorrect about the given graph ?

Options

A. The curve is called oxygen dissociation curve.
B. The part 'A' represents percentage saturation of haemologbin with oxygen.
C. The part 'B' represents partial pressure of carbon dioxide.
D. This curve is highly useful in studying the effect of factors like `PCO_(2), H^(+)` concentration, etc. on binding of `CO_(2)` with haemoglobin.

Answer

C

Explanation

The part `'B'` in the graph represents partial pressure of oxygen.