With reference to the oxyhaemoglobin dissocia | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) $I$. $100\%$ saturation of haemoglobin is very rare under physiological conditions because the partial pressure of oxygen in the blood rarely reac

Vedclass · Accepted Answer

$I$ and $IV$ only

Vedclass · Answer

(A) $I$. $100\%$ saturation of haemoglobin is very rare under physiological conditions because the partial pressure of oxygen in the blood rarely reaches levels that would cause complete saturation.$II$. In the alveoli,the $ppO_2$ is approximately $100 	ext{ mm Hg}$,which results in $95-97\%$ saturation of haemoglobin,which is a correct statement.$III$. At a $ppO_2$ of $30 	ext{ mm Hg}$,the saturation of haemoglobin is approximately $50\%$,which is a correct statement.$IV$. The oxyhaemoglobin dissociation curve is sigmoidal ($S$-shaped),not $J$-shaped.Therefore,statements $I$ and $IV$ are incorrect.

Similar Questions

Transport of $CO_{2}$ by the blood is primarily dependent upon

Under normal conditions,what amount of $O_{2}$ is delivered to the tissues by $100\; mL$ of oxygenated blood (in $; mL$)?

Approximately $97\%$ of $O_2$ is transported by $RBCs$. The remaining $3\%$ is transported by:

The transport of carbon dioxide from tissues to the respiratory surface occurs primarily through ..........

Vedclass Test Series

Exam Paper Generator

Online Exam Module