28. Calculate the velocity of an enzyme- catalyzed reaction A+B P+Q at [A]= ex 10 M and [B]= 6.7x 10 M. Assume chat A and B add randomly to the enzyme and a) a 1 (the binding of one substrate has no effect on the binding of the other), (b) a =0.1 Cthe binding of one substrate decreases the %3D

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28. Calculate the velocity of an enzyme-
catalyzed reaction A+B P+Q at [A]=
2x 10 M and [B]= 6.7x 10 M. Assume
that A and B add randomly to the enzyme and
(a) a =1 (the binding of one substrate has no
effect on the binding of the other), (b) a 0.1
(the binding of one substrate decreases the
%3D
Transcribed Image Text:28. Calculate the velocity of an enzyme- catalyzed reaction A+B P+Q at [A]= 2x 10 M and [B]= 6.7x 10 M. Assume that A and B add randomly to the enzyme and (a) a =1 (the binding of one substrate has no effect on the binding of the other), (b) a 0.1 (the binding of one substrate decreases the %3D
dissociation constant for the other by a factor
of 10). Preliminary experiments established
that KA 2.2 × 10 M, K 1.9x 10* M, and
V= 72.7 nnoles x liter x min.
Vmax
Transcribed Image Text:dissociation constant for the other by a factor of 10). Preliminary experiments established that KA 2.2 × 10 M, K 1.9x 10* M, and V= 72.7 nnoles x liter x min. Vmax
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