Hemoglobin A binds to O₂ with h = 2.9. Hemoglobin B binds to O₂ with h = 2.5. Both hemoglobins have the same p50. When pO₂ is half of the p50, which hemoglobin is bound to more oxygen?
a. Hemoglobin A
b. Hemoglobin B
c. There is insufficient information to answer this question
d. They are the same