Final answer:
The false statement about CO2 is that more CO2 dissolves in the blood plasma than is carried in the RBCs, which is incorrect as the majority of CO2 is carried in the bicarbonate buffer system within RBCs.
Step-by-step explanation:
The false statement about CO₂ is: B) More CO₂ dissolves in the blood plasma than is carried in the RBCs. This is not accurate since the majority of CO₂ is transported in the blood as part of the bicarbonate buffer system, rather than being dissolved in the blood plasma. When it diffuses into red blood cells, CO₂ is quickly converted by the enzyme carbonic anhydrase into carbonic acid, which soon dissociates into bicarbonate ions (HCO₃⁻) and hydrogen ions (H⁺). This reaction facilitates the continued uptake of CO₂ into the blood and influences the pH levels due to the production of hydrogen ions.
Hyperventilation does lead to decreased CO₂ concentration in the blood (A). CO₂ concentration is indeed higher in venous blood compared to arterial blood (C), and the accumulation of CO₂ in the blood leads to a decrease in pH, making the blood more acidic (D).