CO₂ entering venous blood gives it a slightly lower pH than arterial blood.

Name: CO₂ entering venous blood gives it a slightly lower pH than arterial blood.
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Quizplus · Accepted Answer

CO₂ reacts with water in the blood, forming carbonic acid, which lowers the blood pH slightly. This occurs more in venous blood because it contains higher levels of CO₂ due to its lower oxygen saturation. Therefore, venous blood has a slightly lower pH than arterial blood.

CO₂ Entering Venous Blood Gives It a Slightly Lower PH