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1 试题血红蛋白与氧能进行可逆性结合 ,下图示血红蛋白结合氧的百分比随氧分压高低而变化的情况。已知肺泡里的氧分压是 10 0ｍｍＨｇ ,组织中的氧分压是4 0ｍｍＨｇ,并已测得每 10 0ｍＬ血液中的血红蛋白最多能结合氧 2 0ｍＬ。问 :(1)在肺泡处血红蛋白与氧的结合率达%。(2 )
1 Test questions Hemoglobin and oxygen can reversibly bind. The following figure shows the percentage of hemoglobin bound oxygen that changes with the oxygen partial pressure. It is known that the partial pressure of oxygen in the alveoli is 100 mmHg, the oxygen partial pressure in the tissue is 40 mmHg, and it has been measured that the hemoglobin in every 100 mL of blood can bind to oxygen at most 20 mL. Q: (1) The combined rate of hemoglobin and oxygen in the alveoli is up to %. (2 )