# Michaelis Menten kinetics - Plotting to find V-max and Km [closed]

In dealing with the question above I know that if we plot 1/v against 1/[isocitrate] we can get V-max = 1/intercept and Km = slope/intercept.

However when I express the two rows of values in micromoles I get intercept = 3359, and I believe it will be in micromoles? That gives me V-max = 1/(3359*10^-6) = 297.7. However, how do I know the order of magnitude of this number? The textbook says it is pmol, but how is it picomoles/ dm3 s?

## closed as off-topic by David, kmm, Chris♦Nov 22 '18 at 8:55

• This question does not appear to be about biology within the scope defined in the help center.
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• I'm voting to close this question as off-topic because this is not about Biology but numerical manipulation, and in a specific instance. There are many resources on the web for this sort of thing. – David Nov 18 '18 at 16:01
• Another more general point. Do not post text as images. It discriminates against people with sight disabilities. – David Nov 18 '18 at 16:03

As an example if your substrate concentrations are in the range of $$\mu mol / l$$ (which is micromolar, not mircomoles), then that is also the order of magnitue you'll get out of the calculation.
$$dm^{-3}$$ equals litre's ($$1dm^{-3} = 1l$$), it's not usually not used for concentartions, so I can't say why the textbook used it instead. Maybe they wanted to use base SI units.