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I always confuse those two when it comes to Km and Vmax
Anyway to help remember that for the exam :(
 

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The mnemonic (vMAX) ENVY always helped me since biochem

E - efficacy decreases
N - non-competitive
V - Vmax decreases
Y - y-intercept (1/vmax)
 

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first you need to know that always Vmax will represent the y axis and
and the Km will represent the x axis...

Vmax will represent the Efficacy of a Drugs on the Y axis if increase
the Vmax will increase the Efficacy of that Drugs, if the Vmax drecrease
will Efficacy there by Noncompetitive inhibitor always drecrease the
Effect of Vmax.. competitive inhibitor dont affect the vmz

Km will represent the Potency on the X axis and if the Km increase
will decrease the pontency of the Drugs, if the Km decrease will increase the pontency of a Drug competitve inhibitor will increase the Km

Now your job is to learn which Drugs are competitive inhibitor and which drugs are Noncompetitive inhibitor.....

I hope you answered :) you question.
 
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