The pH of blood in an artery and a vein is: | vedclass

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(B) The $pH$ of arterial blood is typically around $7.40$,while the $pH$ of venous blood is slightly lower,around $7.35$.This difference occurs becaus

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More in an artery and less in a vein

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(B) The $pH$ of arterial blood is typically around $7.40$,while the $pH$ of venous blood is slightly lower,around $7.35$.This difference occurs because veins carry blood that is rich in $CO_2$ (carbon dioxide).$CO_2$ reacts with water in the blood to form carbonic acid $(H_2CO_3)$,which dissociates into bicarbonate $(HCO_3^-)$ and hydrogen ions $(H^+)$.The increase in hydrogen ion concentration leads to a decrease in $pH$ in the venous blood compared to arterial blood.

The $pH$ of blood in an artery and a vein is:

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