Question

Read the following statements and identify the incorrect statement.

• A. $pO _{2}$ is the major factor which affects the binding of $CO _{2}$ with haemoglobin
• B. $p CO _{2}$ is low and $p O _{2}$ is high in tissues
• C. RBC contains a very high concentration of carbonic anhydrase
• D. Every $100 \,mL$ of deoxygenated blood delivers approximately $4 \,mL$ of $CO _{2}$ to alveoli

Answer 1

Answer: (B)

Statement in option (b) is incorrect.
The correct form of this statement is
In tissues, $p CO _{2}$ is high and $p O _{2}$ is low.
$p CO _{2}${ in tissues $-45 \,mm$ of $ Hg . $
$ p O _{2}$ in tissues $ -40\, mm $ of $ Hg $