体液pH对药物转运的影响
A．弱酸性药物在酸性条件下解离增多
B．弱碱性药物在酸性条件下解离减少
C．弱碱性药物在酸性条件下解离增多
D．弱碱性药物在细胞外液浓度高
E．弱酸性药物在细胞内液浓度高
参考答案：C
解析：由化学反应方程式可知，弱酸性药物在碱性条件下解离增多，弱碱性药物在酸性条件下解离增多。细胞内较细胞外酸性高，所以弱碱性药物浓度较高，反之亦然。
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| Did you donate (捐献) anything to Sichuan? People all over China and the world are giving help to the suffering (受苦的) people there after the Wenchuan Earthquake. Zha Xiaoxu is a Junior 1 student from Anhui. She began to save money when she was in kindergarten(幼儿园). Last week, she broke her piggy bank (存钱罐) open and donated all the 700 yuan to Sichuan. Han Han is one of the most popular authors (作家) among young people. Shortly after the earthquake, he rushed to Sichuan and to help as a volunteer. Pop singer Jay Chou had a concert in Chongqing on Saturday. He decided to give all the ticket money to Sichuan. Chou has already donated 500 000 yuan to the quake areas. Foreign rescuers (救援人员) from Japan, Russia, the Republic of Korea and Singapore are in Sichuan to help. Now more foreign doctors are on their way to Sichuan to look after the injured (受伤的) people. | ||||||||||||||||||
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