Which of the Following Statements About the Transport of Respiratory

Which of the following statements about the transport of respiratory gases by the blood is false?

A) The amount of O₂ that can dissolve directly in plasma is sufficient to support the resting metabolism.
B) By binding O₂, hemoglobin helps maintain the O₂ concentration gradient.
C) Internal ventilation of the gas exchange surfaces is dependent on blood flow.
D) Each hemoglobin molecule can carry a maximum of four O₂ molecules.
E) Molecules of O₂ are associated with the heme groups of hemoglobin.