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nakyrabrown15
14.07.2019 •
Chemistry
1[s] = km for a simple enzymatic reaction. when substrate concentration is tripled, the rate becomes vmax.
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Ответ:
The problem can be solved with the help of Michaelis Menten kinetics.
The equation can be written as
Where Vo = Initial velocity of the enzyme. This is also known as initial rate of the reaction.
Vmax = Maximum velocity
[S] = Substrate concentration
Km = Michaelis constant for the given enzyme.
When the substrate concentration is tripled, [S] becomes 3[S]
Let us plug this in Michaelis equation.
The new equation that we get is,
We have been given that Km = [S]
Let us write [S] in place of Km in our equation. We get,
On adding the values on the denominator we get,
We can cancel out [S] .
From the above equation, we can see that initial rate of the reaction (V₀) becomes 0.75 times Vmax
Therefore, when substrate concentration is tripled, the rate becomes 0.75 Vmax
Ответ: