Which of these statements describes haemoglobin
A)It combines preferentially with O₂ over any other molecules.
B)When combined with carbon dioxide, it is known as oxyhaemoglobin.
C)It plays a critical role in determining the amount of O₂ that is exchanged between alveoli and blood.
D)It combines preferentially with CO₂ when the partial pressure of O₂ is high in arterial blood.

Question

Quizplus · Accepted Answer

Haemoglobin plays a critical role in oxygen transport by binding to oxygen in the lungs and releasing it in tissues, thus influencing the amount of O₂ exchanged between alveoli and blood.

Which of These Statements Describes Haemoglobin