以丙酮酸为底物的丙酮酸脱羧酶Km=4×10-4摩尔/升,在该酶的反应系统中丙酮酸的浓度为3.6mM,则该酶催化丙酮酸脱羧反应的速度达到最大反应速度的()% 。

以丙酮酸为底物的丙酮酸脱羧酶Km=4×10-4摩尔/升,在该酶的反应系统中丙酮酸的浓度为3.6mM,则该酶催化丙酮酸脱羧反应的速度达到最大反应速度的()% 。


相关考题:

运行以下程序后,输出结果为_____________。 Private Sub Command1_Click() a=1:b=2:c=3 Call test(a,b+3,(c)) Print "main:";a;b;c End Sub Private Function test(p,m,n) p=p+1:m=m+1:n=n+1 Print "sub:";p;m;n End Function:A. sub:2 6 4 main:1 2 3B. sub:2 6 4 main:2 2 3C. sub:2 6 4 main:2 6 4D. sub:2 6 4 main:1 6 4

阅读以下程序:Private Sub Form_click()Dim k, n, m As integern = 20m = 1k = 1Do While k <= nm=m+2k = k + 1LoopPrint mEnd Sub单击窗体程序的执行结果是【 】。

在窗体上画一个命令按钮,然后编写如下代码:Private Sub Commandl_Click()Dim M(10) As IntegerFor k=1 To 10M(k)=12-kNext kx=6Msgbox M(2+M(x))End Sub程序运行后,单击命令按钮,消息框显示的是______。

有如下程序: Private Sub Command1_Click() Dim k As Integer,m As Integer Dim p As Integer k=4:m=1 p=PC(k,m):Print p; p=PC(k,m):Print p End Sub Private Function PC(a As Integer,b As Integer) Static m As Integer,i As Integer m=0:i=2 i=i + m + 1 m=i + a + b PC=m End Function 程序运行后,输出的结果为A.4 6B.6 6C.8 8D.10 12

某个窗体己编写以下事件过程。打开窗体运行后,单击窗体,消息框的输出结果为【 】。Private Sub Form_Click()Dim k as Integer, n as Integer,m as Integern=10 :m=1 : k=1Do While k<=nm=m*2k=k+1LoopMsgBox mEnd Sub

下列程序的运行机结果是【 】。Private Sub Form_ Click()Dim k As Integern= 5m= 1k= 1Dom=m+2k= k+1Loop While k<=nPrint mEnd Sub

下面程序的输出结果是( )。 #include"stdio.h" int sub(int m) { static a=4; a+=m; return a; } void main() { int i=2,j=1,k; k=sub(i); k=sub(j); printf("%d",k); }A.6B.7C.8D.9

在窗体上画一个命令按钮,然后编写如下事件过程: Private Sub Commandl_Click() Dim m As Integer, n As Integer, p As Integer m=3: n=5: p=0 Call Y(m, n, p) Print Str(p) End Sub Sub Y(ByVal i As Integer, ByVal j As Integer, k As Integer) k=i+j End Sub 程序运行后,如果单击命令按钮,则在窗体上显示的内容是( )A.4B.6C.8D.10

有如下程序: Private Sub Command1_Click() Dim k As Integer,m As Integer Dim op As Integer k=4:m=1 p=PPC(k,m):Print op; p=PPC(k.m):Print op End Sub Private Function PPC(a As Integer,b As Integer) Static m As Integer,i As Integer m=0:i=2 i=i+m+1 m=i+a+b PPC=m End Function 程序运行后,输出的结果为A.4 6B.6 6C.8 8D.10 12

在窗体上画一个命令按钮,然后编写如下事件过程: Private Sub Command1_Click() Dim in As Integer,n As Integer,p As Integer m=3:n=5:p=0 Call Y(m,n,p) Print Str(p) End Sub Sub Y(ByVal i As Integer,ByVal j As Integer,k As Integer) k=i+j End Sub 程序运行后,如果单击命令按钮,则在窗体上显示的内容是A.4B.6C.8D.10

下列程序的运行结果是()。includevoid sub(int*s,int*y){static int m=4;*y=s[0];m++;} 下列程序的运行结果是( )。 #include<stdio.h> void sub(int*s,int*y) {static int m=4; *y=s[0]; m++; } void main() {int a[]={1,2,3,4,5},k; int x; printf("\n"); for(k=0;k<=4;k++) {sub(a,x); printf("%d,",x); } }A.1,1,1,1,1,B.1,2,3,4,5,C.0,0,0,0,0,D.4,4,4,4,4,

阅读以下程序:Prlvate Sub Form_Click()Dim k,n,m As Integern=10m=1k=1Do While k<=nm=m*2k=k+1LoopPrint mEnd Sub程序运行后,单击窗体,输出结果为【 】。

下列程序的运行结果是()。includevoid sub(int*s,int*y){static int m=4:*y=s[m];m--;} 下列程序的运行结果是( )。 #include<stdio.h> void sub(int*s,int*y) {static int m=4: *y=s[m]; m--; } void main() {int a[]={1,2,3,4,5},k,x; printf("\n"); for(k=0;k<=4;k++) {sub(a,x); printf("%d,",x); } }A.5,4,3,2,1,B.1,2,3,4,5,C.0,0,0,0,0,D.4,4,4,4,4,

为某个窗体编写如下事件,单击窗体,消息框显示的结果为【 】。Private Sub Form_Click( )Dim k As Integer ,n As Integer ,m As Integern=10:m=1:k=1Do While k<=nm=m*2k=k+1LoopMsgBox mEnd Sub

有如下的程序。 Private Sub Commandl_Click( ) Dim k As Integer, m As Integer Dim P As Integer k=4: m=1 P=Fun(k, m) : Print P; P = Fun ( k, m) : Print P End Sub Private Function Fun( a As Integer, b As Integer) Static m As Integer, i As Integer m=5:i=2 i=i+m+1 m=i + a + b Fun=m\2 End Function 单击命令按钮后,输出结果为A.2 2B.4 4C.5 5D.6

在窗体中添加一个命令按钮,编写如下程序: Private Sub Test(p,m,n) p=p+1:m=m+1:n=n+1 Print "Sub: ";p;m;n End Sub Private Sub Command1.Click() a1=1:b=2:c1=3 Call Test((a,b1+3,(c1)) Print "Main:";a1;b1;c1 End Sub 程序运行后,输出结果为A.Sub: 2 6 4 Main: 2 6 4B.Sub: 2 6 4 Main: 2 6 4C.Sub: 2 6 4 Main: 1 2 3D.Sub: 2 6 4 Main: 2 2 3

在窗体中有一个名为Command1的命令按钮,事件代码如下: Private Sub Command1_Click( ) Dim m(10) For k=1 T0 10 m(k)=11=k Next k x=6 MsgBox m(2+m(x)) End Sub 打开窗体,单击命令按钮,消息框的输出结果是( )。A.2B.3C.4D.5

当发生Form_Click事件时,下列程序的输出结果是( )。 Private m As Integer,n As Integer Private Sub Form_Click() Dim k As Integer,p As Integer k=6:p=60 Call sub1(k,p) Print m,n,m,k,p Call sub1(k,p) Print m,n,k,p End Sub Private Sub Form_Load() m=7 n=70 End Sub Public Sub sub1(x As Integer,ByVal y As Integer) Dim m As Integer n=n+5 m=n+x+y x=x+y y=x+y End SubA.7 75 66 60 7 80 126 60B.7 75 66 60 7 75 126 60C.7 75 66 60 7 80 66 60D.7 75 66 60 7 75 66 60

在窗体中添加一个命令按钮,编写如下程序:Private Sub Sub1(p,m,n)p=p+1:m=m+1:n=n+1Print "sub1:";p;m;nEnd SubPrivate Sub Command1_Click()a1=1:b=2:c1=3Call Sub1(a,b1+3,c1)Print"Main:";a1;b1;c1End Sub程序运行后,输出结果为A.Sub: 2 6 4 Main: 2 6 4B.Sub: 2 6 4 Main: 2 6 4C.Sub: 2 6 4 Main: 1 2 3D.Sub: 2 6 4 Main: 2 2 3

在窗体中添加一个命令按钮,编写如下程序: Private Sub Sub1(p,m,n) p=p+1:m=m+1:n=n+1 Print "sub1:";p;m;n End Sub Private Sub Command1_Click() a1=1:b=2:c1=3 Call Sub1(a,b1+3,c1) Print"Main:";a1;b1;c1 End Sub 程序运行后,输出结果为A.Sub: 2 6 4 Main: 2 6 4B.Sub: 2 6 4 Main: 2 6 4C.Sub: 2 6 4 Main: 1 2 3D.Sub: 2 6 4 Main: 2 2 3

在窗体中有一个名为Command1的命令按钮,事件代码如下:Private Sub Command1_Click( )Dim m(10)For k=1 T0 10m(k)=11=kNext kx=6MsgBox m(2+m(x))End Sub打开窗体,单击命令按钮,消息框的输出结果是( )。A.2B.3C.4D.5

下面程序: Private Sub Command1_Click() m$="ABC" n$="abc" k$=Lcase$(m$) j$=Ucase$(n$) Print Asc(k$) End Sub 运行后输出结果为()A、96B、97C、65D、64

填空题以丙酮酸为底物的丙酮酸脱羧酶Km=4×10-4摩尔/升,在该酶的反应系统中丙酮酸的浓度为3.6mM,则该酶催化丙酮酸脱羧反应的速度达到最大反应速度的()% 。

单选题酶促反应速度(v)达到最大反应速度(Vmax)的80%时,底物浓度[S]为Ap1Ksubm/sub/pBp2Ksubm/sub/pCp3Ksubm/sub/pDp4Ksubm/sub/pEp5Ksubm/sub/p

多选题标准砝码的质量为m,测量得到的最佳估计值为100.02147g,合成标准不确定uc(ms) 为0.35mg,取包含因子k=2,以下表示的测量结果中 ( ) 是正确的。Apmsubs/sub=100.02147g;U=0.70mg,k=2/pBpmsubs/sub=(100.02147±0.00070)g;k=2/pCpmsubs/sub=100.02147g;usubc/sub(msubs/sub)=0.35mg,k=1/pDpmsubs/sub=100.02147g;usubc/sub(msubs/sub)=0.35mg/p

单选题下列测量结果的表示中,错误的是()。ApIsubS/sub=10.0413A,Usubrel/sub=5×10sup-5/sup,k=2 /pBpIsubS/sub=10.0413(1±5×10sup-5/sup)A,k=2 /pCpIsubS/sub=(10.0413±5×10sup-5/sup)A,k=2 /pDpIsubS/sub=10.0413A,Usub95rel/sub=5×10sup-5/sup,Vsubeff/sub=9 /p

单选题标称值为10kΩ的标准电阻在23℃时的校准值Rs为9.9999315kΩ,合成标准不确定度为52mΩ。在被测量服从正态分布的情况下,当包含概率为95%时,测量结果可表示为( )。ApRsubs/sub=9.99993kΩ,Usub95/sub=0.10Ω,ksub95/sub=1.96/pBpRsubs/sub=9.999931kΩ,Usub95/sub=0.10Ω,ksub95/sub=1.96/pCpRsubs/sub=9.99993kΩ,Usub95/sub=102mΩ,ksub95/sub=1.96/pDpRsubs/sub=9.999931kΩ,Usub95/sub=102mΩ,ksub95/sub=1.96/p