enzymes can be used for only a limited number right . then if there is more of substrate  and few enzymes also are used to their maximum level of usage and their function stops ,then  rate of reaction would become less . am i right ?????

Dear student

Please refer the solution below for the said query


Yes, you are right.
 

With an increase in substrate concentration, the velocity of enzymatic reaction increases at a very fast rate, and then reaches its maximum velocity (Vmax).

Velocity does not increase beyond Vmax even if concentration of substrate is increased further.

This happens because enzyme molecules saturate with substrate molecules, and no enzyme molecules are left to bind with the additional substrate molecules.




Hope this information clears your doubt about the topic.

Regards

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Rate of reaction means rate of consumption of reactant /change of time Rate of consumption of reactant will be at maximum extent so there wouldnot be decreases in rate .....rate is max though Many reactants would not change to product .....but dat does not matter much....as mass of reactant consumed is max....
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