申論題

2. Given the following plot of oxygen binding versus pressure of O₂ for myoglobin and hemoglobin at pH 7.2, (1) draw a curve that shows what happens when the pH is increased to about 7.6 and (2) draw a curve that shows what happens when the pH is decreased to about 6.8. (3) What is the pH value at which hemoglobin has higher affinity of O₂? Please provide the explanation from the curves. (10%)