問題詳情
39.tThe "hemoglobin O2 dissociation curve":
(A)treflects about 50% saturation of hemoglobin in the alveoli.
(B)tshifts to the left when the pH decreases.
(C) demonstrates that hemoglobin holds less O2when the pH is higher.
(D)tproves lack of dependence on CO2 levels.
(E)texplains how hemoglobin can bind O2 at high pH in the lungs and release it at lower pH in tissue.
參考答案
答案：E
統計：A:0,B:0,C:0,D:0,E:3
難度：計算中