名词解释题protein kinase A system (PKA系统)
名词解释题
protein kinase A system (PKA系统)
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中强碱的范围是A.pKa2B.pKa为2~7C.pKa为7~11D.pKa11E.pKa13强碱的范围是A.pKa2B.pKa为2~7C.pKa为7~11D.pKa11E.pKa13请帮忙给出每个问题的正确答案和分析,谢谢!
生物碱根据pKa值大小可以分为A、pKa12的近中性碱B、pKa>12的强碱,pKa7~12的中强碱,pKa2~7的弱碱,pKa12的近中性碱D、pKa>12的强碱,pKa12~2的弱碱,pKa12的中强碱,pKa2~12的弱碱,pKa
根据下列解离常数(pKa)判断,在小肠中吸收最好的药物是 ( ) A、苯巴比妥pKa 7.9B、水杨酸pKa 3.0C、乙酰水杨酸pKa 3.5D、磺胺嘧啶pKa 6.5E、麻黄碱pKa 9.4
维生素C、阿司匹林可使pKa在哪一范围之间的药物排泄增多 ( ) A、pKa 1.5~2.0B、pKa 2.0~2.5C、pKa 5.5~6.5D、pKa 7.5~10.5E、pKa 11.5~12.5
Americans eat ___________ as they actually need everyday.A.twice as much proteinB.twice protein as much twiceC.twice protein as muchD.protein as twice much
在生理pH 7.4时,有99%以上呈离子型,不能通过血-脑屏障进入中枢神经系统起作用,无药理作用的是A.巴比妥酸(pKa值为4.12)B.苯巴比妥(pKa值为7.4)C.海索比妥(pKa值为8.4)D.异戊巴比妥(pKa值为7.9)E.戊巴比妥(pKa值为8.0)
在生理pH 7.4时,约有50%以分子形式存在,可进入中枢神经系统起作用的是A.巴比妥酸(pKa值为4.12)B.苯巴比妥(pKa值为7.4)C.海索比妥(pKa值为8.4)D.异戊巴比妥(pKa值为7.9)E.戊巴比妥(pKa值为8.0)
生物碱根据pKa值大小可以分为A.pKa12的近中性碱B.pKa>12的强碱,pKa7~12的中强碱,pKa2~7的弱碱,pKa12的近中性碱D.pKa>12的强碱,pKa12~2的弱碱,pKa12的中强碱,pKa2~12的弱碱,pKa
The major objective of system configuration management is which of the following?系统配置管理的主要目标是下列哪一个?()A、system tracking.系统跟踪B、system operations.系统操作C、system maintenance.系统维护D、system stability.系统稳定性
跨膜蛋白属于()A、整合蛋白(integral protein)B、外周蛋白(peripheral protein)C、脂锚定蛋白(lipid-anchored protein)D、整合蛋白或外周蛋白
生物碱根据pKa值大小可以分为()A、pKa2的强碱,pKa2~7的中强碱,pKa7~12的弱碱,pKa12的近中性碱B、pKa12的强碱,pKa7~12的中强碱,pKa2~7的弱碱,pKa2的近中性碱C、pKa2的强碱,pKa2~12的弱碱,pKa12的近中性碱D、pKa12的强碱,pKa12~2的弱碱,pKa2的近中性碱E、pKa12的中强碱,pKa2~12的弱碱,pKa2的近中性碱
单选题Americans eat ______ as they actually need every day.Atwice as much proteinBtwice protein as much twiceCtwice protein as muchDprotein as twice much
单选题生物碱根据pKa值大小可以分为()ApKa2的强碱,pKa2~7的中强碱,pKa7~12的弱碱,pKa12的近中性碱BpKa12的强碱,pKa7~12的中强碱,pKa2~7的弱碱,pKa2的近中性碱CpKa2的强碱,pKa2~12的弱碱,pKa12的近中性碱DpKa12的强碱,pKa12~2的弱碱,pKa2的近中性碱EpKa12的中强碱,pKa2~12的弱碱,pKa2的近中性碱
单选题跨膜蛋白属于()A整合蛋白(integral protein)B外周蛋白(peripheral protein)C脂锚定蛋白(lipid-anchored protein)D整合蛋白或外周蛋白
名词解释题receptor tyrosine kinase, RTKs (受体酪氨酸激酶)