Which of the Following Statements About the Transport of Respiratory

question 112

Multiple Choice

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.

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