天冬氨酸的pK1(α-COOH)=2.09,pK2(α-NH2)=9.82,pKR(R-基团)=3.86,其pI值是()。

天冬氨酸的pK1(α-COOH)=2.09,pK2(α-NH2)=9.82,pKR(R-基团)=3.86,其pI值是()。


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试计算丙氨酸(PKα-COOH=2.34,PKα-NH3=9.69),谷氨酸(PKα-COOH=2.19,PKα-NH3=9.67,PKR-COOH=4.25)的等电点。

Glu的pK1(-COOH)为2.19,pK2(-NH3)为9.67,pK3(-COOH)为4.25,其pI是()A、4.25B、3.22C、6.96D、5.93

单选题假设ed为需求弹性,当(  )时,商品降价将使企业销售收入增加。A|eSUBd/SUB|1B|eSUBd/SUB|=1C0|eSUBd/SUB|1D|eSUBd/SUB|=0

单选题变直径圆管流,细断面直径d1,粗断面直径d2=2d1,粗细断面雷诺数的关系是( )。ApResub1/sub=0.5Resub2/sub/pBpResub1/sub=Resub2/sub/pCpResub1/sub=1.5Resub2/sub/pDpResub1/sub=2Resub2/sub /p

多选题下列扩展不确定度的表示中,表示形式是正确的是____。ApUsub95/sub=1%(vsubeff/sub=9)/pBpUsubr/sub=1%(k=2)/pCpusubCr/sub=0.5%/pDU=±0.5%(k=1)

单选题Glu的pK1(-COOH)为2.19,pK2(-NH3)为9.67,pK3(-COOH)为4.25,其pI是()A4.25B3.22C6.96D5.93

单选题永续盘存法公式为()AKsubt/sub+1=Isubt/sub-(1-δ)Ksubt/subBKsubt/sub+1=It+(1-δ)Ksubt/subCKsubt/sub+1=Isubt/sub+(1+δ)Ksubt/subDKsubt/sub+1=Isubt/sub-(1+δ)Ksubt/sub

单选题天冬氨酸的pK1=2.09,pK2=3.86,pK3=9.82,则其等电点为(  )。A2.09B2.97C3.86D6.84E9.82

单选题天冬氨酸的pK1=2.09,pK2=3.86,pK3=9.82,则其等电点为(取净电荷为零的分子形态两侧的pK计算)()。A2.09B2.97C3.86D6.84E9.82

填空题天冬氨酸的pK1(α-COOH)=2.09,pK2(α-NH2)=9.82,pKR(R-基团)=3.86,其pI值是()。

问答题试计算丙氨酸(PKα-COOH=2.34,PKα-NH3=9.69),谷氨酸(PKα-COOH=2.19,PKα-NH3=9.67,PKR-COOH=4.25)的等电点。

多选题下列表示中____的表示形式是正确的。ApUsub95/sub= 1%,vsubeff/sub =9 /pBpUsubr/sub= 1%,k=2 /pCpusubC/sub=0. 5% /pDpusubC/sub=±0 5%.k=1 /p

多选题在过程控制中,若TL=-3,Tu=3,u=1,σ=1,则(  )。ACsubP/sub=1 BCsubP/sub=2/3 CCsubPk/sub=1 DCsubPk/sub=2/3

单选题( )被称为广义货币。ApMsub0/sub/pBpMsub1/sub/pCpMsub2/sub/pDpMsub3/sub/p