The table below gives the initial velocities of a decarboxylase, determined at various [S], in the presence or absence of a chemical substance F. [S] (MM) Vo (mM.min-¹) Vo in presence of F (mM.min-¹) 1.5 2 0.15 0.21 0.25 0.06 0.08 0.10 3 4 8 16 20 0.30 0.33 0.40 0.42 0.42 0.12 0.13 0.15 0.16 0.16 1- Without drawing the graph and without calculation, determine the Vmax and Km values of the enzyme, in the absence and in the presence of the compound F. Can you deduce the precise role of F?

Biochemistry
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ISBN:9781319114671
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Chapter1: Biochemistry: An Evolving Science
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The table below gives the initial velocities of a decarboxylase, determined at various
[S], in the presence or absence of a chemical substance F.
[S] (MM)
Vo (mM.min-¹)
Vo in presence of F
(mM.min¹¹)
1.5
2
3
4
8
16
20
0.21 0.25
0.30
0.33 0.40
0.42
0.42
0.06 0.08 0.10 0.12 0.13 0.15 0.16 0.16
1
0.15
1- Without drawing the graph and without calculation, determine the Vmax and Km
values of the enzyme, in the absence and in the presence of the compound F. Can
you deduce the precise role of F?
Transcribed Image Text:The table below gives the initial velocities of a decarboxylase, determined at various [S], in the presence or absence of a chemical substance F. [S] (MM) Vo (mM.min-¹) Vo in presence of F (mM.min¹¹) 1.5 2 3 4 8 16 20 0.21 0.25 0.30 0.33 0.40 0.42 0.42 0.06 0.08 0.10 0.12 0.13 0.15 0.16 0.16 1 0.15 1- Without drawing the graph and without calculation, determine the Vmax and Km values of the enzyme, in the absence and in the presence of the compound F. Can you deduce the precise role of F?
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