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Question
............ is the substrate concentration at which an enzyme attains half of its maximum velocity.
............ is the substrate concentration at which an enzyme attains half of its maximum velocity.
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Solution
The correct option is C Michaelis-Menten constant
In general, the rate of the reaction catalyzed by an enzyme increases with the increase in substrate concentration till all the active sites of an enzyme have been occupied by substrate molecules, after which there is no increase in the rate of reaction with the increase in substrate concentration. Michaelis-Menten constant (Km) is a constant indicating the substrate concentration at which an enzyme catalyzed reaction attains half its maximum velocity. Lower the Km value greater will be the speed of catalyzed reaction and higher will be the rate of substrate formation.So, the correct answer is option C.
In general, the rate of the reaction catalyzed by an enzyme increases with the increase in substrate concentration till all the active sites of an enzyme have been occupied by substrate molecules, after which there is no increase in the rate of reaction with the increase in substrate concentration. Michaelis-Menten constant (Km) is a constant indicating the substrate concentration at which an enzyme catalyzed reaction attains half its maximum velocity. Lower the Km value greater will be the speed of catalyzed reaction and higher will be the rate of substrate formation.
So, the correct answer is option C.
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